a guardar bobo
a guarda globo
prepart inf n
a guardar bobo .
a WORD_BOUNDARY ɡ w a ɾ d a ɾ WORD_BOUNDARY β o̞ β o̞ WORD_BOUNDARY
a WORD_BOUNDARY g u a r d a r WORD_BOUNDARY b o b o WORD_BOUNDARY . WORD_BOUNDARY