atte atte atte atte atte atte
atte atte atte atte atte atte .
a c e WORD_BOUNDARY a c e WORD_BOUNDARY a c e WORD_BOUNDARY a c e WORD_BOUNDARY a c e WORD_BOUNDARY a c e WORD_BOUNDARY
a t t e WORD_BOUNDARY a t t e WORD_BOUNDARY a t t e WORD_BOUNDARY a t t e WORD_BOUNDARY a t t e WORD_BOUNDARY a t t e WORD_BOUNDARY . WORD_BOUNDARY