helikopteroa non tzo
helikopteroa non tzo ?
e l i k o p t̪ e ɾ o a WORD_BOUNDARY n o n WORD_BOUNDARY t̪̻s̪̻ o WORD_BOUNDARY
h e l i k o p t e r o a WORD_BOUNDARY n o n WORD_BOUNDARY t z o WORD_BOUNDARY ? WORD_BOUNDARY