A dog climbs down a black ramp
A dog is sleeping on a couch.
A dog cannot sleep and climb at the same time.
exists e1 s1 s2 x1 x2.(a_down(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_climb(e1) & n_ramp(x2) & a_black(s1) & Theme(s1,x2) & n_dog(x1))
exists e1 x1 x2.(on(e1,x2) & n_couch(x2) & Actor(e1,x1) & v_sleep(e1) & n_dog(x1))