People in a shop under a tent.
The people are under an ingloo.
The people cannot be under an ingloo and a tent simultaneously.
exists x1 x2 x3.(a_topic(x1) & in(x1,x2) & under(x2,x3) & n_tent(x3) & n_shop(x2) & n_people(x1))
exists p1 x1.(n_people(x1) & exists x2.(under(x1,x2) & n_ingloo(x2)))