The person is walking in the mountains.
A person is summiting Mount Baldy.
Walking in the mountains does not imply summiting Mount Baldy.
exists e1 x1 x2.(n_mountain(x2) & n_person(x1) & in(e1,x2) & Actor(e1,x1) & v_walk(e1))
exists e1 x1 x2 x3.(ne_per_baldy(x2) & (x2 = x3) & ne_per_mount(x3) & Theme(e1,x2) & Actor(e1,x1) & v_summit(e1) & n_person(x1))