A man holds a long leash with a large gray dog attached to it.
A family is walking their dog.
A man is holding a leash with a large gray dog attached to the dog but he isn't necessarily walking it. Only one man is holding the leash so he doesn't necessarily have a family with him.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4.(with(e1,x3) & to(e2,x1) & n_thing(x1) & Theme(e2,x4) & v_attach(e2) & (x3 = x4) & n_dog(x3) & a_gray(s3) & Theme(s3,x3) & a_large(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_leash(x2) & a_long(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_dog(x2) & of(x2,x1) & n_thing(x1) & n_family(x1))