text 850 1449 1506 1994
text 151 1129 806 1509
text 851 625 1506 1328
text 151 1854 807 1989
text 150 191 807 837
equation 951 450 1503 597
text 851 191 1505 421
text 152 1023 736 1054
equation 946 1357 1409 1420
equation 178 1075 803 1108
equation 155 1529 803 1834
equation 193 857 803 1006
header 648 126 1026 154