A young child wearing a yellow wetsuit rides on a surfboard.
A kid on a surfboard.
A young child is a kid and rides on a surfboard means he is on a surfboard.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & on(x3,x5) & n_surfboard(x5) & n_ride(x3) & of(x3,x4) & n_wetsuit(x4) & a_yellow(s2) & Theme(s2,x3) & (x1 = x2) & n_child(x1) & a_young(s1) & Theme(s1,x1))
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_surfboard(x2) & n_kid(x1))