a big park festival outside.
A small tea party is happening in the garden.
A park festival and a tea party are different. One is small and one is large.
exists s1 x1 x2 x3.(a_topic(x1) & n_outside(x1) & of(x1,x3) & n_festival(x3) & of(x1,x2) & n_park(x2) & a_big(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(n_garden(x3) & in(e1,x3) & Actor(e1,x1) & v_happen(e1) & n_party(x1) & of(x1,x2) & n_tea(x2) & a_small(s1) & Theme(s1,x1))