ss macht das ss
ss machen das ss
on v pro on
ss macht das ss .
 ɛ s ɛ s WORD_BOUNDARY m a x t WORD_BOUNDARY d a s WORD_BOUNDARY  ɛ s ɛ s WORD_BOUNDARY
s s WORD_BOUNDARY m a c h t WORD_BOUNDARY d a s WORD_BOUNDARY s s WORD_BOUNDARY