Soccer players dancing in the air.
Soccer players dancing.
These sentences are the same except one omits the phrase "in the air."
exists e1 x1 x2 x3 x4.(n_air(x4) & a_topic(x1) & in(e1,x4) & Actor(e1,x3) & v_dance(e1) & (x1 = x3) & n_player(x1) & (x1 = x2) & ne_nam_soccer(x2))
exists e1 x1 x2.(Actor(e1,x1) & v_dance(e1) & n_player(x1) & (x1 = x2) & ne_nam_soccer(x2))