Assertion: graph's edge | /r/CapableOf | represent abstraction
Facets:
Source sentences:
text: Edges are the key concept in graph databases, representing an abstraction that is not directly implemented in a relational model or a document-store model .
text: Edges are the key concept in graph databases, representing an abstraction that is not directly implemented in a relational model or a document-store model Properties are information associated to nodes.