text 885 1678 1552 1958
text 885 1144 1552 1451
text 147 1170 815 1474
text 885 418 1554 956
text 147 156 816 673
text 147 774 815 955
text 885 156 1552 340
equation 893 975 1551 1130
equation 908 1472 1551 1664
equation 168 689 813 763
text 147 1889 814 1958
equation 217 972 813 1023
equation 161 1082 813 1156
equation 156 1493 813 1878
equation 1063 357 1551 419
text 147 1034 800 1065