A man sitting on the sidewalk with his dog.
There is a man and a dog on the sidewalk.
The man and his dog was sitting  on the sidewalk.
exists e1 x1 x2 x3 x4.(n_dog(x4) & of(x4,x3) & n_male(x3) & n_sidewalk(x3) & a_topic(x1) & with(e1,x4) & on(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
exists p1 x1 x5.(n_sidewalk(x5) & exists x2 x3 x4.((x1 = x2) & subset_of(x4,x2) & on(x4,x5) & n_dog(x4) & subset_of(x3,x2) & n_man(x3)))