text 851 742 1506 1053
text 852 1930 1506 1995
text 151 1930 806 1997
text 151 1753 804 1813
equation 931 638 1424 722
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equation 209 1660 747 1728
equation 251 1836 706 1906
equation 153 505 799 855
text 851 1611 1505 1677
equation 950 1841 1406 1911
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text 151 1386 315 1421
text 851 1760 1505 1824
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