a for 咩 aa3
a for me1 aa3
n:let L2 wh sfp
a for 咩 aa3 ?
 WORD_BOUNDARY  WORD_BOUNDARY m ɛ˥ WORD_BOUNDARY a˧ WORD_BOUNDARY
a WORD_BOUNDARY f o r WORD_BOUNDARY 咩 WORD_BOUNDARY a a 3 WORD_BOUNDARY ? WORD_BOUNDARY