text 297 870 1403 1339
text 297 1437 1404 1671
equation 621 1688 1401 1770
text 297 1788 1403 1938
equation 381 1354 1401 1423
algorithm 297 472 1402 817
text 297 290 1331 445
text 297 131 1401 198
equation 369 212 1338 274