A person climbing down a sheer rock cliff using a rope
A person is walking through the park.
One can not be climbing and walking at the same time One can not go down and through at the same time rock cliff is not the same as a park.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & for(e1,e2) & Theme(e2,x5) & Actor(e2,x2) & v_use(e2) & n_rope(x5) & a_down(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x2) & v_climb(e1) & n_cliff(x3) & of(x3,x4) & n_rock(x4) & a_sheer(s1) & Theme(s1,x3) & (x1 = x2) & n_person(x1))
exists e1 x1 x2.(n_park(x2) & through(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_person(x1))