Two tennis players are talking on the tennis courts.
Someone is about to serve.
the fact that two tennis players are talking on the tennis courts doesn't mean someone is about to serve. for example, the game could be over.
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))
exists p1 s1 x1.(Topic(s1,p1) & Actor(s1,x1) & a_about(s1) & exists e1.(Actor(e1,x1) & v_serve(e1)) & n_person(x1))