text 151 1582 806 1994
text 151 489 810 827
text 851 1823 1507 1994
text 151 1087 810 1319
text 151 924 807 1020
text 851 192 1508 1044
text 851 1166 1510 1730
equation 245 1334 773 1402
text 151 1431 805 1496
text 149 192 806 421
equation 1089 1064 1267 1146
equation 924 1746 1505 1784
equation 360 1514 597 1547
equation 231 1038 725 1072
equation 328 841 627 909
equation 247 439 709 472
header 602 126 1058 156