It's a python program. Can somebody speculates and codes using the doctests below? I can just get this information without any other details! Please help me speculate using the green doctests below.

class Point2D: >>> Point2D(-3,2) - Point2D (2,3) (-5,-1) # --- YOUR CODE START HERE class Point3D: >>> Point3D (2,2,1) - Point3D(6,3,2) (-4,-1,-1) # --- YOUR CODE START HERE class Vector: >>>pl=Point2D(-3,2) >>>p2=Point2D (2,3) >>>x=Vector (p1, p2) >>>x.dirction (5,1) >>>p1=Point3D (2,2,1) >>>p2=Point3D(6,3,2) >>>x=Vector (pl,p2) >>>x.direction (4,1,1) # --- YOUR CODE START HERE