Elijah posted a girl a cake on a tripod .
post . agent ( x _ 1 , Elijah ) AND post . recipient ( x _ 1 , x _ 3 ) AND post . theme ( x _ 1 , x _ 5 ) AND girl ( x _ 3 ) AND cake ( x _ 5 ) AND cake . nmod . on ( x _ 5 , x _ 8 ) AND tripod ( x _ 8 )