apple 咩 aa1 apple
apple me1 aa1 apple
L2 wh sfp L2
apple 咩 aa1 apple ?
 WORD_BOUNDARY m ɛ˥ WORD_BOUNDARY a˥ WORD_BOUNDARY  WORD_BOUNDARY
a p p l e WORD_BOUNDARY 咩 WORD_BOUNDARY a a 1 WORD_BOUNDARY a p p l e WORD_BOUNDARY ? WORD_BOUNDARY