prrrr aah prrr aah prrr
prrrr aah prrr aah prrr .
p eː e rː e rː e rː e rː WORD_BOUNDARY aː h WORD_BOUNDARY p eː e rː e rː e rː WORD_BOUNDARY aː h WORD_BOUNDARY p eː e rː e rː e rː WORD_BOUNDARY
p r r r r WORD_BOUNDARY a a h WORD_BOUNDARY p r r r WORD_BOUNDARY a a h WORD_BOUNDARY p r r r WORD_BOUNDARY . WORD_BOUNDARY