Two basketball players oppose each other at the net.
Two basketball players are on their team's first string.
Two basketball players don't have to be on the team's first string.
exists x1 x2 x4.(n_net(x4) & all x3.(n_other(x3) -> exists e1.(at(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_oppose(e1))) & n_player(x1) & of(x1,x2) & n_basketball(x2) & card_eq_2(x1))
exists p1 s1 x1 x2 x3 x4.(on(x1,x4) & n_string(x4) & a_first(s1) & Theme(s1,x4) & of(x4,x3) & n_team(x3) & of(x3,x1) & n_thing(x1) & n_player(x1) & of(x1,x2) & n_basketball(x2) & card_eq_2(x1))