o ja van opa Koen
o ja van opa koen .
 oː WORD_BOUNDARY j aː WORD_BOUNDARY v ɑ n WORD_BOUNDARY  oː p aː WORD_BOUNDARY k u n WORD_BOUNDARY
o WORD_BOUNDARY j a WORD_BOUNDARY v a n WORD_BOUNDARY o p a WORD_BOUNDARY k o e n WORD_BOUNDARY