Two young boys are playing volleyball.
Two girls on a tennis court.
Volleyball cannot be played in a tennis court.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_volleyball(x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists x1 x2 x3.(a_topic(x1) & on(x1,x2) & n_court(x2) & of(x2,x3) & n_tennis(x3) & n_girl(x1) & card_eq_2(x1))