A man on a bike is walking a dog along a boardwalk.
THE grass was green
The man is on a boardwalk and no where does it say there is grass or whether the grass was green.
exists e1 x1 x2 x3 x4.(along(e1,x4) & n_boardwalk(x4) & Theme(e1,x3) & Actor(e1,x1) & v_walk(e1) & n_dog(x3) & on(x1,x2) & n_bike(x2) & n_man(x1))
exists s1 x1.(n_grass(x1) & Theme(s1,x1) & a_green(s1))