mamma mma mma mmamamama
mamma mma mma mmamamama .
m a m m a WORD_BOUNDARY m m a WORD_BOUNDARY m m a WORD_BOUNDARY m m a m a m a m a WORD_BOUNDARY
m a m m a WORD_BOUNDARY m m a WORD_BOUNDARY m m a WORD_BOUNDARY m m a m a m a m a WORD_BOUNDARY