equation 466 1549 1234 1634
equation 1436 437 2154 549
equation 398 2887 1095 2999
equation 1595 648 1995 756
text 1308 774 2284 2989
text 259 301 1236 1512
text 260 1672 1235 2849
text 1309 301 2280 410
text 1308 577 2280 646