你 a a b b c aa4
nei5 a a b b c aa4
pro n:let n:let n:let n:let n:let sfp
你 a a b b c aa4 ?
n e˨ j˧ WORD_BOUNDARY  WORD_BOUNDARY  WORD_BOUNDARY  WORD_BOUNDARY  WORD_BOUNDARY  WORD_BOUNDARY a˧˩̰ WORD_BOUNDARY
你 WORD_BOUNDARY a WORD_BOUNDARY a WORD_BOUNDARY b WORD_BOUNDARY b WORD_BOUNDARY c WORD_BOUNDARY a a 4 WORD_BOUNDARY ? WORD_BOUNDARY