A man is walking across the street while it is snowing.
It is snowing outside.
The man is on the street, a street is outside, it is snowing outside.
exists e1 p1 x1 x2.(n_thing(x2) & n_street(x2) & exists e2.(Actor(e2,x2) & v_snow(e2)) & while(e1,p1) & across(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
exists e1 s1 x1.(n_thing(x1) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_snow(e1))