figure 419 230 1023 696
caption 218 788 1230 1023
equation 311 1247 1221 1376
equation 315 2516 1226 2636
equation 452 2900 1226 3021
text 223 1109 1226 1222
text 1320 239 2327 3010
text 223 1407 1226 2483
text 223 2668 1225 2893