text 873 1377 1491 1878
text 214 1590 832 1876
text 873 312 1489 443
text 214 176 832 1144
equation 313 1160 829 1227
equation 969 1275 1487 1338
equation 971 466 1487 509
text 873 838 1491 1250
text 215 1243 833 1509
text 872 535 1491 751
equation 286 1527 829 1559
equation 1019 774 1345 812
equation 981 234 1487 272
text 872 178 1066 214
header 532 122 1178 148