text 851 1864 1506 1995
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text 151 472 808 1634
text 151 1927 806 1995
equation 855 1512 1504 1655
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text 853 1155 1506 1224
equation 233 1647 725 1733
equation 196 368 760 458
equation 924 1787 1432 1855
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equation 194 1828 764 1914
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text 851 1674 1505 1772
equation 972 1238 1383 1319
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equation 896 749 1504 915
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text 856 190 1502 221
header 582 124 1084 155