Two tennis players are talking on the tennis courts.
Everyone is at a volleyball court.
Tennis and volleyball are different sports.
exists e1 x1 x2 x3.(on(e1,x3) & n_court(x3) & of(x3,x2) & n_tennis(x2) & n_tennis(x2) & Actor(e1,x1) & v_talk(e1) & n_player(x1) & of(x1,x2) & card_eq_2(x1))
all x1.(n_person(x1) -> exists p1 x2 x3.(at(x1,x2) & n_court(x2) & of(x2,x3) & n_volleyball(x3)))