Assertion: graph's value | /r/RelatedTo | the vertex
Facets:
Source sentences:
text: ( , , ): removes the edge from the vertex to the vertex , if it is there; get_vertex_value ( G , x ): returns the value associated with the vertex x ;
text: ( , ): returns the value associated with the vertex ;
text: set_vertex_value (G, x, v): sets the value associated with the vertex x to v.