text 851 889 1506 1076
text 851 1272 1508 1995
text 151 190 808 1658
text 852 719 1505 790
text 151 1799 805 1856
equation 886 1104 1506 1245
equation 213 1868 806 1943
equation 200 1660 806 1769
equation 959 815 1506 862
equation 913 609 1506 694
text 151 1956 773 1998
text 851 190 1507 584
header 404 128 1258 156