ei3 lo2 lei4 先
ei3 lo2 lei4 sin1
co v v sfp
ei3 lo2 lei4 先 .
ei˧ WORD_BOUNDARY l ɔ̽˧˥ WORD_BOUNDARY l ei˧˩̰ WORD_BOUNDARY s i˥ n WORD_BOUNDARY
e i 3 WORD_BOUNDARY l o 2 WORD_BOUNDARY l e i 4 WORD_BOUNDARY 先 WORD_BOUNDARY . WORD_BOUNDARY