这道数学题怎么解？
他爸想了会说：“是高矮的意思。[{'character': '他', 'pinyin': 'ta1', 'highest pitch': 10.43, 'lowest pitch': 10.09, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '爸', 'pinyin': 'ba4', 'highest pitch': 10.9, 'lowest pitch': 9.25, 'duration': 0.23, 'prosody hierarchy': '#2'}, {'character': '想', 'pinyin': 'xiang3', 'highest pitch': 6.11, 'lowest pitch': 5.18, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '了', 'pinyin': 'le5', 'highest pitch': 7.12, 'lowest pitch': 5.38, 'duration': 0.11, 'prosody hierarchy': 'null'}, {'character': '会', 'pinyin': 'huei4', 'highest pitch': 10.76, 'lowest pitch': 7.12, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '说', 'pinyin': 'shuo1', 'highest pitch': 9.51, 'lowest pitch': 8.43, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.45}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.52, 'lowest pitch': 8.03, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '高', 'pinyin': 'gao1', 'highest pitch': 11.5, 'lowest pitch': 10.7, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '矮', 'pinyin': 'ai3', 'highest pitch': 10.7, 'lowest pitch': 4.91, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 6.14, 'lowest pitch': 5.24, 'duration': 0.11, 'prosody hierarchy': '#1'}, {'character': '意', 'pinyin': 'i4', 'highest pitch': 7.41, 'lowest pitch': 6.14, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '思', 'pinyin': 'sii5', 'highest pitch': 13.71, 'lowest pitch': 5.66, 'duration': 0.24, 'prosody hierarchy': '#4'}]