The man on the bike is riding next to a man holding a dog.
A man with his cat.
A dog and a cat are two different kinds of animals.
exists e2 e1 x1 x2 x3 x4.(n_bike(x2) & to(e1,x1) & Theme(e2,x4) & Actor(e2,x3) & v_hold(e2) & n_dog(x4) & (x1 = x3) & n_man(x1) & n_man(x1) & r_next(e1) & Actor(e1,x1) & v_ride(e1) & on(x1,x2))
exists x1 x2.(a_topic(x1) & with(x1,x2) & n_cat(x2) & of(x2,x1) & n_male(x1) & n_man(x1))