bu fliegt in der Luft
bu fliegt in der luft .
b uː WORD_BOUNDARY f l iː k t WORD_BOUNDARY  ɪ n WORD_BOUNDARY d ɛ ɐ WORD_BOUNDARY l ʊ f t WORD_BOUNDARY
b u WORD_BOUNDARY f l i e g t WORD_BOUNDARY i n WORD_BOUNDARY d e r WORD_BOUNDARY l u f t WORD_BOUNDARY