奶奶 是 谁 啊
nai3 shi4 shei2 a1
n:relat v:cop pro:wh sfp
奶奶 是 谁 啊 ?
n ai̯˧˩˧ WORD_BOUNDARY ʂ ɻ̩˥˩ WORD_BOUNDARY ʂ ei̯˧˥ WORD_BOUNDARY a˥ WORD_BOUNDARY 
奶 奶 WORD_BOUNDARY 是 WORD_BOUNDARY 谁 WORD_BOUNDARY 啊 WORD_BOUNDARY