espera espera una espina
espera espera una espina .
ə s̺ p ɛ ɾ̺ a WORD_BOUNDARY ə s̺ p ɛ ɾ̺ a WORD_BOUNDARY u n̺ a WORD_BOUNDARY ə s̺ p i n̺ a WORD_BOUNDARY
e s p e r a WORD_BOUNDARY e s p e r a WORD_BOUNDARY u n a WORD_BOUNDARY e s p i n a WORD_BOUNDARY . WORD_BOUNDARY