快 还 给 妈妈
kuai4 huan2 gei3 ma1
adv v prep n:relat
快 还 给 妈妈 .
kʰ w ai̯˥˩ WORD_BOUNDARY x w a˧˥ n WORD_BOUNDARY k ei̯˧˩˧ WORD_BOUNDARY m a˥ WORD_BOUNDARY 
快 WORD_BOUNDARY 还 WORD_BOUNDARY 给 WORD_BOUNDARY 妈 妈 WORD_BOUNDARY