a a so einen Ton
a a so einen ton .
 aː WORD_BOUNDARY  aː WORD_BOUNDARY z oː WORD_BOUNDARY  aɪ n ə n WORD_BOUNDARY t oː n WORD_BOUNDARY
a WORD_BOUNDARY a WORD_BOUNDARY s o WORD_BOUNDARY e i n e n WORD_BOUNDARY t o n WORD_BOUNDARY