A young man sits cross legged on a ledge while looking off to the side.
The man is sitting on a ledge at a boat dock.
sitting cross legged on a ledge  does not mean the man is sitting on a boat dock.
exists e3 e1 e2 p1 s1 s2 x1 x2 x3.(n_side(x3) & while(e2,e3) & a_off(s2) & Manner(e3,s2) & to(e3,x3) & Actor(e3,x1) & v_look(e3) & for(e1,e2) & on(e2,x2) & n_ledge(x2) & Theme(e2,x1) & v_leg(e2) & exists s3.(Theme(s3,x1) & a_cross(s3)) & Topic(e1,p1) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(n_man(x1) & at(e1,x3) & n_dock(x3) & of(x3,x4) & n_boat(x4) & on(e1,x2) & n_ledge(x2) & Actor(e1,x1) & v_sit(e1))