People are walking, sitting, and standing outside of a department store.
The people outside of the store have been shopping there.
just because  people are standing outside of a department store doesn't imply the have been shopping there.
exists e3 e2 e1 x1 x2 x3 x4 x5.(of(e3,x4) & n_store(x4) & of(x4,x5) & n_department(x5) & r_outside(e3) & Actor(e3,x3) & v_stand(e3) & n_people(x3) & Actor(e2,x2) & v_sit(e2) & n_people(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists e1 s1 x1 x2 x3.(n_store(x3) & n_people(x1) & a_there(s1) & Manner(e1,s1) & n_thing(e1) & Actor(e1,x1) & v_shop(e1) & of(x2,x3) & outside(x1,x2) & n_thing(x2))