Two guys are walking down a sidewalk.
two men are best friends
Men walking down a sidewalk does not means that they are friends.
exists e1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_sidewalk(x2) & n_guy(x1) & card_eq_2(x1))
exists p1 x1.(exists s1 x2.((x1 = x2) & n_friend(x2) & r_most(s1) & a_good(s1) & Theme(s1,x2)) & n_man(x1) & card_eq_2(x1))