figure 254 240 2270 1883
caption 258 1896 2255 1983
equation 260 2318 900 2610
equation 1356 2049 1830 2138
equation 252 2802 906 2967
equation 1371 2465 2145 2567
text 223 2032 1226 2296
text 223 2643 1226 2782
text 1323 2166 2327 2433
text 1323 2582 2327 2980