figure 299 357 1385 836
caption 297 846 1401 943
text 297 1381 1402 1505
text 297 233 1402 324
equation 576 1521 1401 1608
text 297 1638 1403 1795
text 297 977 1403 1312
equation 698 1327 1401 1363
equation 373 1813 1401 2030