The graph T???C@?GC_H?@_KOPg?EcG`PSB@H`CDOOW[O
Unembeddable subgraph
The graph
IpD?GUbV?
is a subgraph of this graph. It is not embeddable. Hence, this
graph is not embeddable either. One possible monomorphism
of the unembeddable graph into this one, is given by: