为什么会稀少呢？
未来，别墅、叠拼类住宅产品将更为稀少。[{'character': '未', 'pinyin': 'uei4', 'highest pitch': 9.07, 'lowest pitch': 7.64, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '来', 'pinyin': 'lai2', 'highest pitch': 8.0, 'lowest pitch': 6.17, 'duration': 0.32, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.17}, {'character': '别', 'pinyin': 'bie2', 'highest pitch': 9.88, 'lowest pitch': 7.25, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '墅', 'pinyin': 'shu4', 'highest pitch': 10.67, 'lowest pitch': 7.13, 'duration': 0.34, 'prosody hierarchy': '#3'}, {'character': '叠', 'pinyin': 'die2', 'highest pitch': 8.04, 'lowest pitch': 6.73, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '拼', 'pinyin': 'pin1', 'highest pitch': 10.89, 'lowest pitch': 8.04, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '类', 'pinyin': 'lei4', 'highest pitch': 10.89, 'lowest pitch': 7.38, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '住', 'pinyin': 'zhu4', 'highest pitch': 8.41, 'lowest pitch': 7.29, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '宅', 'pinyin': 'zhai2', 'highest pitch': 7.44, 'lowest pitch': 6.37, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '产', 'pinyin': 'chan2', 'highest pitch': 8.2, 'lowest pitch': 6.03, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '品', 'pinyin': 'pin3', 'highest pitch': 6.34, 'lowest pitch': 4.24, 'duration': 0.32, 'prosody hierarchy': '#2'}, {'character': '将', 'pinyin': 'jiang1', 'highest pitch': 9.53, 'lowest pitch': 9.02, 'duration': 0.28, 'prosody hierarchy': '#1'}, {'character': '更', 'pinyin': 'geng4', 'highest pitch': 11.07, 'lowest pitch': 7.13, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '为', 'pinyin': 'uei2', 'highest pitch': 7.13, 'lowest pitch': 5.54, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '稀', 'pinyin': 'xi1', 'highest pitch': 6.98, 'lowest pitch': 5.71, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '少', 'pinyin': 'shao3', 'highest pitch': 12.18, 'lowest pitch': 4.66, 'duration': 0.29, 'prosody hierarchy': '#4'}]