Girls playing basketball.
Boys are watching basketball.
Girls and boys are as different as playing and watching basketball.
exists s1 x1 x2 x3.(n_basketball(x1) & a_.(s1) & Theme(s1,x1) & of(x1,x3) & n_playing(x3) & (x1 = x2) & ne_nam_girls(x2) & a_topic(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_basketball(x2) & n_boy(x1))