figure 551 242 2007 924
caption 224 972 2333 1103
equation 609 1541 1229 1635
equation 653 1349 1229 1434
text 225 1194 1225 1313
text 1324 1194 2326 3009
text 224 1671 1227 3009
text 224 1469 1002 1505