tu rut waa der we
tu rut waa der we .
t u WORD_BOUNDARY r u t WORD_BOUNDARY w a a WORD_BOUNDARY d ɛ r WORD_BOUNDARY w ɛ WORD_BOUNDARY
t u WORD_BOUNDARY r u t WORD_BOUNDARY w a a WORD_BOUNDARY d e r WORD_BOUNDARY w e WORD_BOUNDARY