das muß A+A machen
das muß a a machen !
d a s WORD_BOUNDARY m uː s WORD_BOUNDARY  aː WORD_BOUNDARY  aː WORD_BOUNDARY m a x ə n WORD_BOUNDARY
d a s WORD_BOUNDARY m u ß WORD_BOUNDARY a WORD_BOUNDARY a WORD_BOUNDARY m a c h e n WORD_BOUNDARY