There is a person standing on top of a stairway outside of a Costco store.
There is a person waiting in line to enter the store
You can not infer the person is waiting.
exists p1 x1 x2 x3 x4 x5 x6 x7 x8.((x1 = x2) & on(x2,x4) & of(x4,x5) & of(x6,x7) & n_store(x7) & of(x7,x8) & n_costco(x8) & outside(x5,x6) & n_thing(x6) & n_stairway(x5) & n_top(x4) & n_standing(x2) & of(x2,x3) & n_person(x3))
exists p1 x1 x6.(n_store(x6) & exists e1 p2 x2 x3 x4 x5.((x1 = x2) & Topic(e1,p2) & exists e2.(Theme(e2,x6) & Actor(e2,x3) & v_enter(e2)) & in(e1,x5) & n_line(x5) & Actor(e1,x4) & v_wait(e1) & (x2 = x4) & (x2 = x3) & n_person(x2)))