A group of people are walking outside an exhibition tent.
People are walking by an exhibition tent.
A group of people are people; walking by something is the same as walking outside it.
exists e1 x1 x2 x3 x4.(outside(e1,x3) & n_tent(x3) & of(x3,x4) & n_exhibition(x4) & Actor(e1,x1) & v_walk(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3.(by(e1,x2) & n_tent(x2) & of(x2,x3) & n_exhibition(x3) & Actor(e1,x1) & v_walk(e1) & n_people(x1))