Two people walk up stairs into a building
Two friends walk up the stairs together.
Just because they are walking together, does not mean they are friends.
exists e1 s1 x1 x2 x3.(into(e1,x3) & n_building(x3) & a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_stair(x2) & n_people(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(n_stair(x2) & a_together(s1) & Manner(e1,s1) & up(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_friend(x1) & card_eq_2(x1))