a las siete y media
a las siete y media .
a WORD_BOUNDARY l a s WORD_BOUNDARY s j e̞ t e̞ WORD_BOUNDARY i WORD_BOUNDARY m e̞ d j a WORD_BOUNDARY
a WORD_BOUNDARY l a s WORD_BOUNDARY s i e t e WORD_BOUNDARY y WORD_BOUNDARY m e d i a WORD_BOUNDARY . WORD_BOUNDARY