  (Y0) at (0,0) [$X_0$]{}; (Y0) at (0,0.0) [$X_0$]{}; (Y0) at (0,0) [$X_0$]{}; (Y0) at (0,-0.0) [$X_0$]{}; (Y0) at (0,0) [$X_0$]{}; (Y00) at (0,-0.0) [$G_0$]{};  (Y0) edge \[right =-00\] node\[above\] [ ]{} (Y0); (Y0) edge \[bend right = 00, color = red\] node\[above\] [ ]{} (Y0); (Y0) edge \[bend right =-00\] node\[above\] [ ]{} (Y0); (Y0) edge \[bend right = -00\] node\[above\] [ ]{} (Y0); (Y0) edge \[bend right = 00 \] node\[above\] [ ]{} (Y0); (Y0) edge \[bend right =00, color = red\] node\[above\] [ ]{} (Y0); (Y0) edge \[right =00\] node\[above\] [ ]{} (Y0);  (X0) at (0,0) [$X_0$]{}; (X0) at (0,0.0) [$X_0$]{}; (X0) at (0,0) [$X_0$]{}; (X0) at (0,-0.0) [$X_0$]{}; (X0) at (00,0) [$X_0$]{}; (X00) at (0,-0.0) [$G_0$]{};  (X0) edge \[bend right =-00, color = red\] node\[above\] [ ]{} (X0); (X0) edge \[right =00\] node\[above\] [ ]{} (X0); (X0) edge \[bend right =-00, color = red\] node\[above\] [ ]{} (X0); (X0) edge \[bend right =-00\] node\[above\] [ ]{} (X0); (X0) edge \[right =00\] node\[above\] [ ]{} (X0); (X0) edge \[bend right =00\] node\[above\] [ ]{} (X0);  