A person is walking through a snow covered street at night.
A person is walking through snow at night.
person is walking through snow at night shows that snow  is covered in streets.
exists e1 e2 x1 x2 x3 x4.(at(e1,x4) & n_night(x4) & through(e1,x2) & n_street(x2) & Theme(e2,x2) & v_cover(e2) & of(x2,x3) & n_snow(x3) & Actor(e1,x1) & v_walk(e1) & n_person(x1))
exists e1 x1 x2 x3.(at(e1,x3) & n_night(x3) & through(e1,x2) & n_snow(x2) & Actor(e1,x1) & v_walk(e1) & n_person(x1))