figure 109 108 501 241
caption 521 854 899 913
caption 136 258 472 277
equation 224 761 499 788
figure 520 99 883 814
equation 118 1101 363 1121
figure 119 864 494 958
text 119 312 499 743
text 120 807 498 849
text 521 950 900 1186
text 119 1133 497 1185
text 120 976 497 1086