Two men are climbing a rock face at a waterfall.
Two men are eating at a restaurant
One cannot be climbing and eating at the same time.
exists e1 x1 x2 x3 x4.(at(e1,x4) & n_waterfall(x4) & Theme(e1,x2) & Actor(e1,x1) & v_climb(e1) & n_face(x2) & of(x2,x3) & n_rock(x3) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2.(at(e1,x2) & n_restaurant(x2) & Actor(e1,x1) & v_eat(e1) & n_man(x1) & card_eq_2(x1))