a small orchestra performing for an audience.
There is a large orchestra playing.
The orchestra can not be both large and small at the same time.
exists e1 s1 x1 x2 x3.(a_topic(x1) & for(e1,x3) & n_audience(x3) & Actor(e1,x2) & v_perform(e1) & (x1 = x2) & n_orchestra(x1) & a_small(s1) & Theme(s1,x1))
exists p1 x1 s1 x2 x3.((x1 = x2) & n_playing(x2) & of(x2,x3) & n_orchestra(x3) & a_large(s1) & Theme(s1,x2))