T????A?WA_D?@__QBG?J@OiCKL@EaEO`Aoe?
            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: