An old man walking a ferrett through the street on a leash.
Someone is walking their pet down the street
An old man is someone, and a ferret is a pet.
exists e1 s1 x1 x2 x3 x4 x5.(n_street(x4) & a_topic(x1) & on(e1,x5) & n_leash(x5) & through(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_walk(e1) & n_ferrett(x3) & (x1 = x2) & n_man(x1) & a_old(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_street(x3) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & down(x2,x3) & n_pet(x2) & of(x2,x1) & n_thing(x1) & n_person(x1))