A few people are walking through the snow to cross a bridge.
The friends are wearing snowboots.
Just because there are people walking together, it does not make them friends. Not everyone walking through the snow would be wearing snowboots.
exists e1 p1 s1 s2 x1 x2 x3.(n_snow(x3) & Topic(e1,p1) & exists e2 x4.(Theme(e2,x4) & Actor(e2,x1) & v_cross(e2) & n_bridge(x4)) & through(e1,x3) & Actor(e1,x2) & v_walk(e1) & n_people(x2) & a_few(s2) & Theme(s2,x2) & n_people(x1) & a_few(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_friend(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_snowboot(x2))