A boy and girl are playing in bed on top of their father.
Children jumping on the bed.
Playing in bed does not necessarily mean jumping on the bed.
exists e1 x1 x2 x3 x4 x5 x6.(on(e1,x5) & of(x5,x6) & n_father(x6) & of(x6,x2) & n_thing(x2) & n_top(x5) & in(e1,x4) & n_bed(x4) & Actor(e1,x1) & v_play(e1) & n_girl(x3) & n_boy(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 x1 x2 x3.(n_bed(x3) & a_topic(x1) & on(e1,x3) & Actor(e1,x2) & v_jump(e1) & (x1 = x2) & n_child(x1))