Someone is walking down a snowy sidewalk on a cloudy day.
A person walks on snow that is on the sidewalk.
walking down a snowy sidewalk is a rephasing of walks on snow that is on the sidewalk.
exists e1 s1 s2 s3 x1 x2 x3.(on(e1,x3) & n_day(x3) & a_cloudy(s3) & Theme(s3,x3) & a_down(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_sidewalk(x2) & a_snowy(s1) & Theme(s1,x2) & n_person(x1))
exists e1 p1 x1 x2 x3 x4.(n_sidewalk(x4) & on(e1,x2) & on(x3,x4) & (x2 = x3) & n_snow(x2) & Actor(e1,x1) & v_walk(e1) & n_person(x1))