Young people gather in a cluttered store.
The elderly people gather in the store.
One cannot be young and elderly at the same time.
exists e1 s1 s2 x1 x2.(in(e1,x2) & n_store(x2) & a_cluttered(s2) & Theme(s2,x2) & Actor(e1,x1) & v_gather(e1) & n_people(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(n_store(x2) & n_people(x1) & a_elderly(s1) & Theme(s1,x1) & in(e1,x2) & Actor(e1,x1) & v_gather(e1))