your mother's and Philip's
your mother and Philip
det:poss adj coord adj
your mother's and philip's .
j ʊ ɹ WORD_BOUNDARY m ʌ ð ɚ z WORD_BOUNDARY æ n d WORD_BOUNDARY f ɪ l ɪ p s WORD_BOUNDARY
y o u r WORD_BOUNDARY m o t h e r ' s WORD_BOUNDARY a n d WORD_BOUNDARY p h i l i p ' s WORD_BOUNDARY