vas a ir vas a ir
vas a ir vas a ir .
β a s WORD_BOUNDARY a WORD_BOUNDARY i ɾ WORD_BOUNDARY β a s WORD_BOUNDARY a WORD_BOUNDARY i ɾ WORD_BOUNDARY
v a s WORD_BOUNDARY a WORD_BOUNDARY i r WORD_BOUNDARY v a s WORD_BOUNDARY a WORD_BOUNDARY i r WORD_BOUNDARY . WORD_BOUNDARY