text 851 553 1508 1994
text 151 1438 807 1669
text 851 305 1506 465
equation 165 1365 805 1426
text 152 1737 806 1796
text 150 186 806 1346
equation 322 1795 634 1878
equation 152 1930 780 2002
equation 1019 494 1337 527
equation 237 1687 718 1720
text 151 1887 748 1917
equation 1019 245 1337 282
text 854 192 1334 217
header 604 126 1057 153