daa3 daa1 daa3 daa6
daa3 daa1 daa3 daa6
on on on on
daa3 daa1 daa3 daa6 .
t a˧ WORD_BOUNDARY t a˥ WORD_BOUNDARY t a˧ WORD_BOUNDARY t a˨ WORD_BOUNDARY
d a a 3 WORD_BOUNDARY d a a 1 WORD_BOUNDARY d a a 3 WORD_BOUNDARY d a a 6 WORD_BOUNDARY . WORD_BOUNDARY