The man sits with his dog on a bench in a park.
A man sits with his dog.
Both subjects sits with their dogs
exists e1 x1 x2 x3 x4.(n_dog(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & in(e1,x4) & n_park(x4) & on(e1,x3) & n_bench(x3) & with(e1,x2) & Actor(e1,x1) & v_sit(e1))
exists e1 x1 x2.(with(e1,x2) & n_dog(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_sit(e1) & n_man(x1))