妈妈 还 没 听 过
ma1 hai2 mei2 ting1 guo4
n:relat adv adv v asp
妈妈 还 没 听 过 .
m a˥ WORD_BOUNDARY x ai̯˧˥ WORD_BOUNDARY m ei̯˧˥ WORD_BOUNDARY tʰ i˥ ŋ WORD_BOUNDARY k w o˥˩ WORD_BOUNDARY 
妈 妈 WORD_BOUNDARY 还 WORD_BOUNDARY 没 WORD_BOUNDARY 听 WORD_BOUNDARY 过 WORD_BOUNDARY