Crying child standing beside a ride.
A child is laughing
Laughing cannot be crying.
exists e2 e1 x1 x2.(beside(e2,x2) & n_ride(x2) & Actor(e2,x1) & v_stand(e2) & n_child(x1) & Actor(e1,x1) & v_cry(e1))
exists e1 x1.(Actor(e1,x1) & v_laugh(e1) & n_child(x1))