The two man is busy cementing the road.
dog eats grass
A man is not a dog. Cement roads do not have grass.
exists e1 p1 x1 x2.(n_road(x2) & n_man(x1) & card_eq_2(x1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_cement(e2)) & Topic(e1,p1) & Actor(e1,x1) & v_busy(e1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_grass(x2) & n_dog(x1))