A basketball player hanging in the hoop is attempting to high-five the referee.
There are people playing basketball.
A "basketball player hanging in the hoop" implies "people playing basketball".
exists e1 p1 x1 x2 x3 x4 x5.(n_referee(x5) & n_hoop(x4) & Topic(e1,p1) & Actor(e1,x1) & v_attempt(e1) & exists e2.(Theme(e2,x5) & Actor(e2,x1) & v_high-five(e2)) & in(x1,x4) & n_hanging(x1) & of(x1,x3) & n_player(x3) & of(x1,x2) & n_basketball(x2))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_basketball(x4) & (x2 = x3) & n_people(x2))