text 851 1751 1506 1994
text 151 191 808 1993
text 850 912 1507 1604
equation 922 1626 1432 1710
text 851 191 1508 538
equation 892 806 1503 893
equation 878 572 1503 762
text 892 766 1023 797
header 634 128 1014 159