Two dogs, that are tied to the building, patiently wait for their master to return.
Two animals wear collars.
Two dogs that are tied to the building may not be wearing collars.
exists e1 e3 e2 p1 s1 x1 x2 x3 x4 x5 x6 x7.(n_master(x7) & of(x7,x3) & n_thing(x3) & n_building(x6) & n_building(x3) & a_patiently(s1) & Manner(e3,s1) & Topic(e3,p1) & exists e4.(Actor(e4,x1) & v_return(e4)) & for(e3,x7) & Actor(e3,x4) & v_wait(e3) & to(e2,x6) & Theme(e2,x5) & v_tie(e2) & (x4 = x5) & n_dog(x4) & card_eq_2(x4) & to(e1,x3) & Theme(e1,x2) & v_tie(e1) & (x1 = x2) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_collar(x2) & n_animal(x1) & card_eq_2(x1))