equation 138 1221 486 1272
equation 132 998 486 1046
equation 569 547 878 572
equation 165 415 486 443
equation 173 776 486 802
text 510 581 878 1275
text 118 108 485 402
text 510 108 877 534
text 118 1057 485 1213
text 118 811 486 989
text 118 451 486 762