uno tre uno tre uno tre
uno uno tre
art num num
uno tre uno tre uno tre .
u n o WORD_BOUNDARY t r e WORD_BOUNDARY u n o WORD_BOUNDARY t r e WORD_BOUNDARY u n o WORD_BOUNDARY t r e WORD_BOUNDARY
u n o WORD_BOUNDARY t r e WORD_BOUNDARY u n o WORD_BOUNDARY t r e WORD_BOUNDARY u n o WORD_BOUNDARY t r e WORD_BOUNDARY . WORD_BOUNDARY