equation 243 927 1173 983
equation 1349 824 2190 882
equation 1349 1190 2193 1434
equation 1275 2639 2201 2748
text 253 322 1179 892
text 1276 321 2200 779
text 257 1018 1188 2807
text 1280 914 2203 1183
text 1282 1448 2208 2600