A rainbow arches over a suburban neighborhood.
A storm looms over a city.
A storm is not a rainbow.
exists e1 s1 x1 x2.(over(e1,x2) & n_neighborhood(x2) & a_suburban(s1) & Theme(s1,x2) & Actor(e1,x1) & v_arch(e1) & n_rainbow(x1))
exists e1 x1 x2.(over(e1,x2) & n_city(x2) & Actor(e1,x1) & v_loom(e1) & n_storm(x1))