A small boy walking a dog on a leash by a lake.
A boy walking a dog by a lake.
A small boy walking a dog on a leash by a lake tells us that the boy is also small and the dog is on a leash.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & by(e1,x5) & n_lake(x5) & on(e1,x4) & n_leash(x4) & Theme(e1,x3) & Actor(e1,x2) & v_walk(e1) & n_dog(x3) & (x1 = x2) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & by(e1,x4) & n_lake(x4) & Theme(e1,x3) & Actor(e1,x2) & v_walk(e1) & n_dog(x3) & (x1 = x2) & n_boy(x1))