achtung Robert achtung
achtung robert achtung !
 a x t ʊ ŋ WORD_BOUNDARY ʀ oː b ɐ t WORD_BOUNDARY  a x t ʊ ŋ WORD_BOUNDARY
a c h t u n g WORD_BOUNDARY r o b e r t WORD_BOUNDARY a c h t u n g WORD_BOUNDARY