People are walking around booths that are selling things.
The booths sell mugs.
the booths selling things does not imply they are selling mugs
exists e2 e1 x1 x2 x3 x4.(around(e1,x2) & Theme(e2,x4) & Actor(e2,x3) & v_sell(e2) & n_thing(x4) & (x2 = x3) & n_booth(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists e1 x1 x2.(n_booth(x1) & Theme(e1,x2) & Actor(e1,x1) & v_sell(e1) & n_mug(x2))