[
    {
        "page": 1,
        "items": [
            {
                "page": 1,
                "type": "TITLE",
                "location": {
                    "l": 113.04,
                    "t": 720.96,
                    "r": 493.92,
                    "b": 691.2
                },
                "text": "Organic Chemistry - Worksheet #4",
                "reading_order": 0,
                "level": 1
            },
            {
                "page": 1,
                "type": "LIST_ITEM",
                "location": {
                    "l": 27.36,
                    "t": 674.64,
                    "r": 430.08,
                    "b": 655.44
                },
                "text": "Give the correct IUPAC name for the following organic compounds.",
                "marker": "1.",
                "list_id": "L1",
                "level": 0,
                "items": [
                    {
                        "page": 1,
                        "type": "LIST_ITEM",
                        "location": {
                            "l": 39.6,
                            "t": 631.92,
                            "r": 287.04,
                            "b": 595.28
                        },
                        "text": "CH3-CH2-underset bigcirc CH - CH=CH- CH3",
                        "marker": "a)",
                        "list_id": "L1",
                        "level": 1,
                        "reading_order": 0
                    },
                    {
                        "page": 1,
                        "type": "LIST_ITEM",
                        "location": {
                            "l": 39.6,
                            "t": 595.28,
                            "r": 287.04,
                            "b": 576.96
                        },
                        "text": "(CH3-CH-CH-CH-CH3)",
                        "marker": "g)",
                        "list_id": "L1",
                        "level": 1,
                        "reading_order": 1
                    }
                ],
                "reading_order": 1
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 73.44,
                    "t": 631.2,
                    "r": 286.32,
                    "b": 577.92
                },
                "text": "",
                "alt": "Condensed formula: hexene chain with a double bond and a phenyl substituent on C3",
                "description_source": "claude-opus-4-8",
                "reading_order": 2
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 38.88,
                    "t": 554.4,
                    "r": 60.72,
                    "b": 530.4
                },
                "text": "b)",
                "reading_order": 3
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 73.92,
                    "t": 562.56,
                    "r": 179.76,
                    "b": 511.2
                },
                "text": "",
                "alt": "Hand-drawn skeletal structure of ethylbenzene: benzene ring with a CH2-CH3 substituent",
                "description_source": "claude-opus-4-8",
                "reading_order": 4
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 36.24,
                    "t": 479.52,
                    "r": 56.4,
                    "b": 457.68
                },
                "text": "c)",
                "reading_order": 5
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 67.68,
                    "t": 505.68,
                    "r": 142.8,
                    "b": 438.48
                },
                "text": "",
                "alt": "Skeletal structure of a benzene ring with two methyl substituents (dimethylbenzene/xylene)",
                "description_source": "claude-opus-4-8",
                "reading_order": 6
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 34.56,
                    "t": 411.6,
                    "r": 56.88,
                    "b": 384.72
                },
                "text": "d)",
                "reading_order": 7
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 70.08,
                    "t": 415.2,
                    "r": 148.32,
                    "b": 365.04
                },
                "text": "",
                "alt": "Hand-drawn oxygen-containing ring with two adjacent methyl (CH3) substituents",
                "description_source": "claude-opus-4-8",
                "reading_order": 8
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 35.28,
                    "t": 334.08,
                    "r": 59.28,
                    "b": 311.76
                },
                "text": "e)",
                "reading_order": 9
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 68.64,
                    "t": 347.04,
                    "r": 140.4,
                    "b": 294.24
                },
                "text": "",
                "alt": "Skeletal structure of naphthalene (two fused benzene rings)",
                "description_source": "claude-opus-4-8",
                "reading_order": 10
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 308.88,
                    "t": 632.64,
                    "r": 527.52,
                    "b": 573.12
                },
                "text": "g CH 3- CH - CH - CH 3\n\n CH 3",
                "reading_order": 11
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 347.28,
                    "t": 631.92,
                    "r": 526.56,
                    "b": 573.84
                },
                "text": "",
                "alt": "Condensed structure: CH3-CH(CH3)-CH-CH3 chain with a phenyl (benzene ring) substituent",
                "description_source": "claude-opus-4-8",
                "reading_order": 12
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 306,
                    "t": 555.6,
                    "r": 330.48,
                    "b": 531.36
                },
                "text": "h)",
                "reading_order": 13
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 332.4,
                    "t": 580.8,
                    "r": 415.68,
                    "b": 502.8
                },
                "text": "",
                "alt": "Hand-drawn skeletal structure of naphthalene with two bromine substituents",
                "description_source": "claude-opus-4-8",
                "reading_order": 14
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 311.04,
                    "t": 484.08,
                    "r": 330,
                    "b": 456.96
                },
                "text": "i)",
                "reading_order": 15
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 333.6,
                    "t": 506.4,
                    "r": 594.24,
                    "b": 427.92
                },
                "text": "",
                "alt": "Hand-drawn structure: branched carbon chain with methyl, bromo, two phenyl, and nitro substituents, two double bonds",
                "description_source": "claude-opus-4-8",
                "reading_order": 16
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 301.68,
                    "t": 412.32,
                    "r": 321.84,
                    "b": 380.64
                },
                "text": "i)",
                "reading_order": 17
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 329.04,
                    "t": 426,
                    "r": 461.52,
                    "b": 340.8
                },
                "text": "",
                "alt": "Hand-drawn naphthalene with two NO2 groups, a methyl, and a propyl substituent",
                "description_source": "claude-opus-4-8",
                "reading_order": 18
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 386.16,
                    "t": 333.36,
                    "r": 419.28,
                    "b": 310.32
                },
                "text": "NH2",
                "reading_order": 19
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 469.44,
                    "t": 357.84,
                    "r": 580.8,
                    "b": 312.48
                },
                "text": "",
                "alt": "Hand-drawn bond-line fragment: cyclohexane ring with NO2 and Br substituents",
                "description_source": "claude-opus-4-8",
                "reading_order": 20
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 233.52,
                    "t": 344.16,
                    "r": 605.52,
                    "b": 248.4
                },
                "text": "",
                "alt": "Bond-line structure: carbon chain with two triple bonds, phenyl groups, and NH2, NO2, Br, Cl, CH3 substituents",
                "description_source": "claude-opus-4-8",
                "reading_order": 21
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 232.32,
                    "t": 311.76,
                    "r": 259.2,
                    "b": 285.12
                },
                "text": "k)",
                "reading_order": 22
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 36.24,
                    "t": 267.12,
                    "r": 63.36,
                    "b": 236.16
                },
                "text": "f)",
                "reading_order": 23
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 72.24,
                    "t": 272.4,
                    "r": 179.76,
                    "b": 192.96
                },
                "text": "",
                "alt": "Skeletal structure of a naphthalene ring system with methyl and bromo substituents",
                "description_source": "claude-opus-4-8",
                "reading_order": 24
            },
            {
                "page": 1,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 231.6,
                    "t": 243.36,
                    "r": 532.32,
                    "b": 104.16
                },
                "text": "",
                "alt": "Hand-drawn eight-membered ring with methyl, pentyl, two nitro, ethyl, F, Br, phenyl and cyclopentyl substituents",
                "description_source": "claude-opus-4-8",
                "reading_order": 25
            },
            {
                "page": 1,
                "type": "TEXT",
                "location": {
                    "l": 228.48,
                    "t": 237.84,
                    "r": 250.8,
                    "b": 209.76
                },
                "text": "(1)",
                "reading_order": 26
            }
        ]
    },
    {
        "page": 2,
        "items": [
            {
                "page": 2,
                "type": "TEXT",
                "location": {
                    "l": 43.68,
                    "t": 692.88,
                    "r": 77.28,
                    "b": 680.4
                },
                "text": "Name",
                "reading_order": 0
            },
            {
                "page": 2,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 324.72,
                    "t": 744,
                    "r": 375.84,
                    "b": 725.76
                },
                "text": "Rules:",
                "reading_order": 1
            },
            {
                "page": 2,
                "type": "TITLE",
                "location": {
                    "l": 231.12,
                    "t": 722.16,
                    "r": 391.92,
                    "b": 708.72
                },
                "text": "Practice Test 4 Business Calculus",
                "reading_order": 2,
                "level": 2
            },
            {
                "page": 2,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 408.24,
                    "t": 749.04,
                    "r": 597.12,
                    "b": 654.48
                },
                "text": "integral xn dx = (xn+1)/(n+1)+C integral dx =; x+C",
                "latex": "\\begin{array}{c} \\int x^{n} dx=\\frac{x^{n+1}}{n+1}+C \\quad \\int dx=\\\\ x+C \\end{array}",
                "reading_order": 3
            },
            {
                "page": 2,
                "type": "TEXT",
                "location": {
                    "l": 43.68,
                    "t": 651.12,
                    "r": 508.32,
                    "b": 638.88
                },
                "text": "MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.",
                "reading_order": 4
            },
            {
                "page": 2,
                "type": "TEXT",
                "location": {
                    "l": 43.68,
                    "t": 629.52,
                    "r": 88.56,
                    "b": 618.24
                },
                "text": "Evaluate.",
                "reading_order": 5
            },
            {
                "page": 2,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 74.88,
                    "t": 615.84,
                    "r": 469.68,
                    "b": 433.68
                },
                "text": "1) integral (7x2+1) d x; A)14x+C B)x+C C)7/3x3+x+C D)7/3x3+C; = 7underbrace (x2+1)/(2+1) + x+C = 7(x3)/3+x+C;; 2) integral over 20 of dx; A)10x2 B)20x+C C)0 D)20+C; = 20x+C;",
                "latex": "\\begin{aligned}&1)\\int(7x^{2}+1)\\mathrm{d}x\\\\ &\\quad A)14x+C\\quad B)x+C\\quad C)\\frac{7}{3}x^{3}+x+C\\quad D)\\frac{7}{3}x^{3}+C\\\\ &=7\\underbrace{\\frac{x^{2+1}}{2+1}}_{}+\\quad x+C=7\\frac{x^{3}}{3}+x+C\\\\ &\\\\ &2)\\int_{20}^{}dx\\\\ &\\quad A)10x^{2}\\quad B)20x+C\\quad C)0\\quad D)20+C\\\\ &=20x+C\\\\ \\end{aligned}",
                "reading_order": 6
            },
            {
                "page": 2,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 508.08,
                    "t": 624.24,
                    "r": 565.68,
                    "b": 571.92
                },
                "text": "1) C",
                "latex": "_{1)}\\underline{\\mathrm{C}}",
                "reading_order": 7
            },
            {
                "page": 2,
                "type": "TEXT",
                "location": {
                    "l": 508.08,
                    "t": 508.56,
                    "r": 564.96,
                    "b": 462.48
                },
                "text": "2)  B",
                "reading_order": 8
            },
            {
                "page": 2,
                "type": "FIGURE",
                "location": {
                    "l": 508.56,
                    "t": 415.44,
                    "r": 564.72,
                    "b": 391.68
                },
                "text": "",
                "alt": "Handwritten mark",
                "description_source": "claude-opus-4-8",
                "reading_order": 9
            },
            {
                "page": 2,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 77.52,
                    "t": 413.04,
                    "r": 543.36,
                    "b": 317.28
                },
                "text": "\\[\\begin{align*}&\text{3)}~~\\int7x^{-3}\\,\text{d}x\\\\&\\",
                "latex": "\\[\\begin{align*}&\text{3)}~~\\int7x^{-3}\\,\text{d}x\\\\&\\",
                "reading_order": 10
            },
            {
                "page": 2,
                "type": "DISPLAY_FORMULA",
                "location": {
                    "l": 74.64,
                    "t": 296.88,
                    "r": 557.28,
                    "b": 60.24
                },
                "text": "begin align* 4) integral 12x3root(x) d x; textcircled A 8/3x9/2+C; = 12 integral x3· x1/2 d x = 12 integral x3+1/2 d x =; = 12 integral x7/2 d x = 12(x7/2+1)/(7/2+1)+C; = (12xfrac 9 2)/(frac 9 2)+C = frac 4 12 ·frac 2 9 xfrac 9 2+C = frac 8 3 xfrac 9 2+Cend align*",
                "latex": "\\begin{align*}&4)\\quad\\int12x^{3}\\sqrt{x}\\mathrm{d}x\\\\&\\quad\\textcircled{A}\\frac{8}{3}x^{9/2}+C\\\\&=12\\int x^{3}\\cdot x^{\\frac{1}{2}}\\mathrm{d}x=12\\int x^{3+\\frac{1}{2}}\\mathrm{d}x=\\\\&=12\\int x^{\\frac{7}{2}}\\mathrm{d}x=12\\frac{x^{\\frac{7}{2}+1}}{\\frac{7}{2}+1}+C\\\\&=\\frac{12x^{\\frac{9}{2}}}{\\frac{9}{2}}+C=\\frac{4}{12}\\cdot\\frac{2}{9}x^{\\frac{9}{2}}+C=\\frac{8}{3}x^{\\frac{9}{2}}+C\\end{align*}",
                "reading_order": 11
            }
        ]
    }
]