text 140 1005 816 1958
text 147 155 815 490
text 885 458 1553 794
equation 948 381 1507 449
text 141 560 815 898
text 886 310 1552 370
text 878 866 1553 1962
equation 190 924 814 984
equation 1060 810 1376 846
equation 344 509 618 542
text 885 156 1552 245
equation 1073 261 1363 294