text 850 1137 1508 1981
text 152 1835 806 1933
text 151 1461 806 1593
equation 261 1740 803 1811
text 151 509 805 606
text 151 191 806 405
equation 1017 614 1503 685
text 151 1684 697 1715
text 851 191 1506 589
text 851 709 1506 768
equation 299 430 803 482
equation 1036 795 1503 887
equation 172 1244 764 1421
equation 1010 974 1503 1108
text 852 915 1241 946
equation 332 1617 624 1655
equation 172 950 790 1135
text 152 882 491 913
text 151 1176 500 1202
equation 428 636 528 667
text 152 697 284 723
equation 310 753 646 863