A crowd is sitting on a porch outside.
a crowd orders lunch
Not all crowds sitting on a porch are ordering lunch.
exists e1 x1 x2 x3.(on(e1,x2) & n_outside(x2) & of(x2,x3) & n_porch(x3) & Actor(e1,x1) & v_sit(e1) & n_crowd(x1))
exists x1 x2 x3.(a_topic(x1) & n_lunch(x1) & of(x1,x3) & n_order(x3) & of(x1,x2) & n_crowd(x2))