There is a person standing on top of a stairway outside of a Costco store.
A person prepares to get a delicious Cotsco hot dog for lunch
Standing outside of a Costco does not imply preparing to eat there for lunch. It could mean they are about to shop.
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 e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_prepare(e1) & exists e2 s1 s2 x2 x3 x4.(for(e2,x4) & n_lunch(x4) & Theme(e2,x2) & Actor(e2,x1) & v_get(e2) & n_dog(x2) & a_hot(s2) & Theme(s2,x2) & (x2 = x3) & ne_nam_cotsco(x3) & a_delicious(s1) & Theme(s1,x2)) & n_person(x1))