text 847 1720 1507 1987
text 146 202 806 1947
text 847 1336 1502 1646
text 847 1173 1503 1264
text 847 1040 1502 1101
equation 955 983 1223 1017
equation 906 1664 1383 1698
equation 948 1284 1270 1314
equation 956 1121 1272 1151
text 847 826 1502 967
text 846 202 1506 764
equation 903 779 1372 811
header 612 134 1040 159