text 850 911 1506 1995
text 151 1049 806 1500
text 151 681 806 812
text 151 1870 806 1995
equation 240 585 803 667
text 151 923 805 989
equation 866 836 1503 893
equation 346 826 803 909
equation 353 1001 803 1038
equation 152 1513 806 1857
text 851 191 1508 821
text 151 191 806 571
header 416 128 1247 158