Two children stand on a swing in a playground.
The children are swimming in the ocean.
No one can stand while swimming. The location is either in a playground or the ocean.
exists e1 x1 x2 x3.(in(e1,x3) & n_playground(x3) & on(e1,x2) & n_swing(x2) & Actor(e1,x1) & v_stand(e1) & n_child(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_ocean(x2) & n_child(x1) & in(e1,x2) & Actor(e1,x1) & v_swim(e1))