A dog crossing a river on a bridge made of a fallen tree.
a dog is eating his food
A dog cannot be crossing a river and eating at the same tiem
exists e1 e2 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_cross(e2) & on(x3,x4) & of(e1,x6) & n_tree(x6) & a_fallen(s1) & Theme(s1,x6) & Theme(e1,x5) & v_make(e1) & (x4 = x5) & n_bridge(x4) & n_river(x3) & (x1 = x2) & n_dog(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_food(x2) & of(x2,x1) & n_male(x1) & n_dog(x1))