Some entities are showing up in both proteins and chemicals

[gaurav]

In some cases we have incomplete cliques that are chemicals and proteins:

• #200
• #232
• NCATSTranslator/Feedback#150
• NCATSTranslator/Feedback#576
• NCATSTranslator/Feedback#613
• NCATSTranslator/Feedback#623
• NCATSTranslator/Feedback#743 (comment)

Note that this sometimes results in the same identifier showing up twice -- once as a chemical and once as a protein:

• #215
• #276
• #308
• NCATSTranslator/Feedback#821
• NCATSTranslator/Feedback#970

[gaurav]

Given the structure of Babel and NodeNorm, the easiest way to fix this would be by creating a hidden conflation that combines chemicals and proteins that we understand to mean the same thing into a hybrid Protein-Chemical clique. So that reduces this problem to:

• Where can we store this hidden conflation in our databases (we could create a new database, but that would be annoying)
• How do we identify that a particular CHEBI and a particular Protein refer to the same thing?