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kan4 na3 ge4 kuai4
v pro:wh cl adv
看 哪 个 快 ?
kʰ a˥˩ n WORD_BOUNDARY n a˧˩˧ WORD_BOUNDARY k ɤ˥˩ WORD_BOUNDARY kʰ w ai̯˥˩ WORD_BOUNDARY 
看 WORD_BOUNDARY 哪 WORD_BOUNDARY 个 WORD_BOUNDARY 快 WORD_BOUNDARY