text 147 1194 815 1532
text 147 1796 814 1964
text 885 156 1553 722
text 884 1300 1553 1547
equation 908 1841 1551 1957
text 147 922 815 1077
equation 221 1092 813 1179
text 147 156 816 865
equation 970 736 1551 805
equation 148 1694 812 1780
text 884 1111 1551 1205
text 147 1602 815 1679
equation 158 1544 802 1590
text 885 1660 1551 1825
equation 1002 1216 1434 1286
equation 986 1563 1450 1645
equation 867 951 1441 1100
equation 405 880 556 911
text 884 818 1552 941