A person walks in front of a movie theater at night.
The person has no friends.
Walking in front of a movie theater at night does not imply the person has no friends.
exists e1 x1 x2 x3 x4 x5.(at(e1,x5) & n_night(x5) & in(e1,x2) & of(x2,x3) & n_theater(x3) & of(x3,x4) & n_movie(x4) & n_front(x2) & Actor(e1,x1) & v_walk(e1) & n_person(x1))
exists x1.(n_person(x1) & -exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_friend(x2)))