figure 1472 1493 2331 2195
figure 1491 495 2115 551
equation 219 2577 956 2805
text 224 256 1206 2541
text 1349 589 2325 1416
text 1349 2255 2328 3000
text 1349 255 2325 458
text 224 2839 1201 2999