text 851 1864 1506 1994
text 849 864 1504 1172
text 154 193 806 1996
equation 836 775 1504 842
equation 935 1286 1382 1343
text 851 680 1504 749
equation 934 1173 1293 1229
equation 917 1791 1439 1844
text 851 1232 1506 1289
text 852 1373 1506 1477
equation 872 1496 1504 1622
text 852 1644 1505 1768
figure 922 197 1437 395
equation 907 620 1283 673
text 852 594 1104 623
caption 854 438 1508 567
header 570 130 1092 157