Editing Meyniel graph (section)

==Related graph classes==
The Meyniel graphs contain the [[chordal graph]]s, the [[parity graph]]s, and their subclasses the [[interval graph]]s, [[distance-hereditary graph]]s, [[bipartite graph]]s, and [[line perfect graph]]s.<ref name="isgci">[http://www.graphclasses.org/classes/gc_194.html Meyniel graphs], Information System on Graph Classes and their Inclusions, retrieved 2016-09-25.</ref>
[[File:House graph.svg|thumb|upright=0.65|The house graph is perfect but not Meyniel]]
Although Meyniel graphs form a very general subclass of the perfect graphs, they do not include all perfect graphs. For instance the house graph (a pentagon with only one chord) is perfect but is not a Meyniel graph.