text 151 1797 808 1994
text 151 768 806 1081
text 851 754 1505 851
text 151 441 806 691
text 851 949 1508 1995
equation 937 865 1503 935
equation 195 335 803 406
equation 227 1102 803 1173
text 851 191 1506 685
equation 979 701 1376 738
equation 284 708 803 747
text 152 190 806 317
text 151 1194 804 1225
text 152 1310 804 1398
equation 152 1416 796 1775
equation 152 1226 804 1297
header 254 128 1406 156