Two people rock climbing.
Two people playing video games.
If the people are rock climbing, they are not playing video games.
exists e1 x1 x2 x3.(a_topic(x1) & Actor(e1,x3) & v_climb(e1) & (x1 = x3) & Time(x1,x2) & n_rock(x2) & n_people(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_game(x3) & a_video(s1) & Theme(s1,x3) & (x1 = x2) & n_people(x1) & card_eq_2(x1))