A big dog tied to a door.
A pet is tied and is not able to move freely.
A dog can be a pet, and if a dog is tied it cannot move freely.
exists e1 s1 x1 x2 x3.(a_topic(x1) & to(e1,x3) & n_door(x3) & Theme(e1,x2) & v_tie(e1) & (x1 = x2) & n_dog(x1) & a_big(s1) & Theme(s1,x1))
exists e1 x1 x2.(-exists p1 s1.(Topic(s1,p1) & Actor(s1,x2) & a_able(s1) & exists e2 s2.(a_freely(s2) & Manner(e2,s2) & Actor(e2,x2) & v_move(e2))) & n_pet(x2) & Theme(e1,x1) & v_tie(e1) & n_pet(x1))