A man is walking by trees in front of the city skyline.
A man is cooking at home.
The man could not be walking by trees if he is cooking while at home inside.
exists e1 x1 x2 x3 x4 x5.(n_skyline(x4) & of(x4,x5) & n_city(x5) & in(e1,x3) & of(x3,x4) & n_front(x3) & by(e1,x2) & n_tree(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
exists e1 x1 x2.(at(e1,x2) & n_home(x2) & Actor(e1,x1) & v_cook(e1) & n_man(x1))