A person walks across a stoned path.
The man is flying to Cardassia Prime.
A person who walks on a path cannot simultaneously be flying
exists e1 e2 x1 x2.(across(e1,x2) & n_path(x2) & Theme(e2,x2) & v_stone(e2) & Actor(e1,x1) & v_walk(e1) & n_person(x1))
exists e1 x1 x2 x3.(ne_geo_prime(x2) & (x2 = x3) & ne_geo_cardassia(x3) & n_man(x1) & to(e1,x2) & Actor(e1,x1) & v_fly(e1))