Men are walking with a pack of dogs.
The men are relaxing on the beach.
The men may not be walking and relaxing at the same time
exists e1 x1 x2 x3.(with(e1,x2) & of(x2,x3) & n_dog(x3) & n_pack(x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
exists e1 x1 x2.(n_beach(x2) & n_man(x1) & on(e1,x2) & Actor(e1,x1) & v_relax(e1))