People walk down a flight of stone steps in public.
Two people are walking home together.
The people are walking down a flight of steps but that doesn't mean that they are walking home together.
exists e1 s1 x1 x2 x3 x4 x5.(down(e1,x2) & of(x2,x3) & Theme(s1,x5) & a_public(s1) & (x3 = x5) & n_step(x3) & of(x3,x4) & n_stone(x4) & n_flight(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists e1 s1 x1 x2.(a_together(s1) & Manner(e1,s1) & Time(e1,x2) & n_home(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1) & card_eq_2(x1))