Enhancement: Improve Networkx MultiDiGraph Metadata about pheknowlator HOT 4 CLOSED

Hi @callahantiff - I agree with the summary for the most part. My suggestion is to make the key some identifier unique across the knowledge graph. Could be just an incremented integer unique to each relation with respect to the triple that it occurs in. I like to use 'predicate' for the URIRef that represents the edge relationship (which will likely be from an ontology e.g. RO and not unique), and weight should be 0.0 as you indicated.

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Thanks so much @rkboyce, that's exactly what I needed to know!

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Done! Note that this representation now includes keys for nodes and edges and has a default weight of 0.0:

• Node key: str(http://purl.obolibrary.org/obo/CHEBI_35406)
• Relation key: MD5 hash of triple ensures that each key is unique with respect to the triple it occurs in ➞

   hash(
        'http://purl.obolibrary.org/obo/CHEBI_35406' + 
        'http://www.w3.org/2000/01/rdf-schema#subClassOf' +
        'http://purl.obolibrary.org/obo/CHEBI_29067'
            )
  

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Completed as part of #84

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