Tennis players all standing around a court.
People are on a court.
if your standing around a court it can be said they are on a court
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & a_all(s1) & Manner(e1,s1) & around(e1,x4) & n_court(x4) & Actor(e1,x3) & v_stand(e1) & (x1 = x3) & n_player(x1) & (x1 = x2) & ne_nam_tennis(x2))
exists p1 x1.(exists x2.(on(x1,x2) & n_court(x2)) & n_people(x1))