Kids playing in a play area.
Kid playing.
Kid playing implies that at least one kid is playing.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_play(x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_area(x3) & (x1 = x2) & n_kid(x1))
exists s1 s2 x1.(n_playing(x1) & a_kid(s2) & Theme(s2,x1) & a_.(s1) & Theme(s1,x1) & a_topic(x1))