text 851 1796 1507 1994
text 851 1196 1507 1628
text 151 858 808 1994
equation 907 1657 1505 1767
text 851 463 1507 1013
equation 906 358 1505 433
equation 907 1045 1505 1167
equation 205 665 805 834
text 151 190 807 632
text 851 191 1507 328
header 472 130 1188 156