People gather outdoors at a market.
The people are inside.
People can't be outdoors and inside at the same time.
exists e1 x1 x2 x3.(at(e1,x3) & n_market(x3) & Theme(e1,x2) & Actor(e1,x1) & v_gather(e1) & n_outdoors(x2) & n_people(x1))
exists e1 s1 x1.(n_people(x1) & a_inside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_be(e1))