este es de matematicas
este es de matematicas .
e̞ s t e̞ WORD_BOUNDARY e̞ s WORD_BOUNDARY d e̞ WORD_BOUNDARY m a t e̞ m a t i k a s WORD_BOUNDARY
e s t e WORD_BOUNDARY e s WORD_BOUNDARY d e WORD_BOUNDARY m a t e m a t i c a s WORD_BOUNDARY . WORD_BOUNDARY