text 851 1144 1506 1720
text 849 677 1506 1020
text 151 1314 807 1748
text 151 192 807 892
equation 852 1040 1495 1122
equation 239 956 805 1029
equation 166 1177 805 1249
equation 866 1741 1505 1983
equation 263 1813 674 2002
text 151 1094 180 1113
equation 886 236 1453 651
text 856 192 964 216
header 514 132 1144 153