"琉球海槽是什么地方？"
所至琉球大洋，应即琉球海沟，今称冲绳海槽。[{'character': '所', 'pinyin': 'suo3', 'highest pitch': 8.96, 'lowest pitch': 7.3, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '至', 'pinyin': 'zhiii4', 'highest pitch': 9.96, 'lowest pitch': 7.3, 'duration': 0.28, 'prosody hierarchy': '#2'}, {'character': '琉', 'pinyin': 'liou2', 'highest pitch': 11.01, 'lowest pitch': 7.63, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '球', 'pinyin': 'qiou2', 'highest pitch': 11.56, 'lowest pitch': 8.15, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '大', 'pinyin': 'da4', 'highest pitch': 11.04, 'lowest pitch': 7.78, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '洋', 'pinyin': 'iang2', 'highest pitch': 9.1, 'lowest pitch': 6.0, 'duration': 0.31, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.2}, {'character': '应', 'pinyin': 'ing1', 'highest pitch': 9.26, 'lowest pitch': 8.9, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '即', 'pinyin': 'ji2', 'highest pitch': 8.93, 'lowest pitch': 6.68, 'duration': 0.28, 'prosody hierarchy': '#2'}, {'character': '琉', 'pinyin': 'liou2', 'highest pitch': 11.01, 'lowest pitch': 7.76, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '球', 'pinyin': 'qiou2', 'highest pitch': 11.56, 'lowest pitch': 10.64, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '海', 'pinyin': 'hai3', 'highest pitch': 9.74, 'lowest pitch': 4.57, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '沟', 'pinyin': 'gou1', 'highest pitch': 9.93, 'lowest pitch': 8.34, 'duration': 0.3, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.31}, {'character': '今', 'pinyin': 'jin1', 'highest pitch': 9.1, 'lowest pitch': 8.63, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '称', 'pinyin': 'cheng1', 'highest pitch': 9.86, 'lowest pitch': 8.66, 'duration': 0.4, 'prosody hierarchy': '#2'}, {'character': '冲', 'pinyin': 'chong1', 'highest pitch': 11.65, 'lowest pitch': 10.92, 'duration': 0.31, 'prosody hierarchy': 'null'}, {'character': '绳', 'pinyin': 'sheng2', 'highest pitch': 11.65, 'lowest pitch': 6.33, 'duration': 0.26, 'prosody hierarchy': '#1'}, {'character': '海', 'pinyin': 'hai3', 'highest pitch': 9.74, 'lowest pitch': 4.88, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '槽', 'pinyin': 'cao2', 'highest pitch': 9.16, 'lowest pitch': 5.27, 'duration': 0.41, 'prosody hierarchy': '#4'}]