equation 1478 1442 2169 1566
equation 1494 1956 2151 2112
equation 1652 597 1995 647
equation 1652 597 1995 647
text 223 239 1228 3010
text 1323 239 2325 527
text 1323 1593 2325 1884
text 1323 2141 2325 3002
text 1323 674 2326 1380