una burbuja enorme
una burbuja enorme .
u n a WORD_BOUNDARY β u ɾ β u x a WORD_BOUNDARY e̞ n o̞ ɾ m e̞ WORD_BOUNDARY
u n a WORD_BOUNDARY b u r b u j a WORD_BOUNDARY e n o r m e WORD_BOUNDARY . WORD_BOUNDARY