a no no no no
a no no no no .
a WORD_BOUNDARY n o̞ WORD_BOUNDARY n o̞ WORD_BOUNDARY n o̞ WORD_BOUNDARY n o̞ WORD_BOUNDARY
a WORD_BOUNDARY n o WORD_BOUNDARY n o WORD_BOUNDARY n o WORD_BOUNDARY n o WORD_BOUNDARY . WORD_BOUNDARY