Four people are walking along a street that is covered in leaves.
Some people are heading downtown.
It cannot be declared that they are heading downtown, as there is no implication of there location and leaves can be in other places.
exists e2 e1 x1 x2 x3 x4.(along(e1,x2) & in(e2,x4) & n_leaf(x4) & Theme(e2,x3) & v_cover(e2) & (x2 = x3) & n_street(x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1) & card_eq_4(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_head(e1) & n_downtown(x2) & n_people(x1))