Baseball pitcher and catcher discussing
Baseball players talking.
It is not know if all of the baseball players are definitely using words and talking in their discussions.
exists s1 x1 x2 x3 x4.(n_discuss(x2) & of(x2,x4) & n_catcher(x4) & n_pitcher(x1) & of(x1,x3) & n_baseball(x3) & subset_of(x2,s1) & subset_of(x1,s1) & a_topic(s1))
exists e1 x1 x2 x3.(a_topic(x1) & Actor(e1,x3) & v_talk(e1) & (x1 = x3) & n_player(x1) & of(x1,x2) & n_baseball(x2))