People walk down a crowded street.
The people are outside
If people walk down a crowded street, they must be outside.
exists e1 s1 x1 x2.(down(e1,x2) & n_street(x2) & a_crowded(s1) & Theme(s1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists s1 x1.(n_people(x1) & Theme(s1,x1) & a_outside(s1))