Assertion: graph's edge | /r/HasProperty | bidirected
Facets:
Source sentences:
text: Symmetric directed graphs are directed graphs where all edges are bidirected (that is, for every arrow that belongs to the digraph, the corresponding inversed arrow also belongs to it).
text: are directed graphs where all edges are bidirected (that is, for every arrow that belongs to the digraph, the corresponding inversed arrow also belongs to it).
text: Oriented graphs are directed graphs having no bidirected edges (i.e. at most one of ( x , y ) and ( y , x ) may be arrows of the graph).