Four men are walking up a trail.
Men are watching television.
The men cannot be walking up a trail and watching television at the same time.
exists e1 s1 x1 x2.(a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_trail(x2) & n_man(x1) & card_eq_4(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_television(x2) & n_man(x1))