{
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"Figure 8-20":["8-13"],
"Figure 8-21":["8-14"],
"Figure 8-22":["8-14"],
"Figure 8-23":["8-16"],
"Figure 8-24":["8-16"],
"Figure 8-25":["8-17"],
"Figure 8-26":["8-17"],
"Figure 8-27":["8-17"],
"Figure 8-28":["8-18"],
"Figure 8-29":["8-20"],
"Figure 8-30":["8-21"],
"Figure 8-31":["8-23"]
}