我 lo2 a b
ngo5 lo2 a b
pro v n:let n:let
我 lo2 a b .
ŋ ɔ˨˧ WORD_BOUNDARY l ɔ˨˥ WORD_BOUNDARY  WORD_BOUNDARY  WORD_BOUNDARY
我 WORD_BOUNDARY l o 2 WORD_BOUNDARY a WORD_BOUNDARY b WORD_BOUNDARY . WORD_BOUNDARY