# six nodes, possible to do without a bend
[ Oranienburg ] -> [ Henningsdorf ]
[ Oranienburg ] -> [ Herzberg ]
[ Henningsdorf ] -> [ Strausberg ]
[ Strausberg ] -> [ Herzberg ]
[ Strausberg ] -> [ Neuruppin ]
[ Oranienburg ] -> [ Postdam ]
# six nodes, possible to do without a bend
[ Oranienburg ] -> [ Henningsdorf ]
[ Oranienburg ] -> [ Herzberg ]
[ Henningsdorf ] -> [ Strausberg ]
[ Strausberg ] -> [ Herzberg ]
[ Strausberg ] -> [ Neuruppin ]
[ Oranienburg ] -> [ Postdam ]