text 151 1391 809 1993
text 850 1222 1510 1719
text 151 799 807 1077
text 851 1023 1507 1120
equation 902 1734 1503 1818
equation 910 921 1445 1005
text 852 1835 1509 1900
text 851 708 1509 772
equation 267 1289 803 1364
equation 203 1110 803 1197
text 152 1223 739 1261
equation 1056 1134 1503 1210
text 850 842 1505 906
text 150 191 809 701
equation 276 729 803 767
equation 966 650 1503 690
equation 1109 1914 1247 1989
equation 1022 785 1335 823
text 850 191 1511 637
header 414 130 1246 155