Two men climb a set of stairs.
Two guys headed up to the next story.
People usually climb a set of stairs to go up to the next story of a building.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_climb(e1) & of(x2,x3) & n_stair(x3) & n_set(x2) & n_man(x1) & card_eq_2(x1))
exists e1 s1 s2 x1 x2.(n_story(x2) & a_next(s1) & Theme(s1,x2) & a_up(s2) & Manner(e1,s2) & to(e1,x2) & Actor(e1,x1) & v_head(e1) & n_guy(x1) & card_eq_2(x1))