A man in a gray shirt is walking along a path.
The man in a gray shirt is on a boat.
One can be either on a boat or walking along a path.
exists e1 s1 x1 x2 x3.(along(e1,x3) & n_path(x3) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_shirt(x2) & a_gray(s1) & Theme(s1,x2) & n_man(x1))
exists p1 s1 x1 x2.(n_man(x1) & exists x3.(on(x1,x3) & n_boat(x3)) & in(x1,x2) & n_shirt(x2) & a_gray(s1) & Theme(s1,x2))