Two small children in red shirts playing on a skateboard.
The children are playing with a red truck.
Children can not be playing on a skateboard while also playing with a truck.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & on(e1,x4) & n_skateboard(x4) & Actor(e1,x3) & v_play(e1) & (x2 = x3) & n_shirt(x2) & a_red(s2) & Theme(s2,x2) & n_child(x1) & a_small(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(n_child(x1) & with(e1,x2) & n_truck(x2) & a_red(s1) & Theme(s1,x2) & Actor(e1,x1) & v_play(e1))