Sugar is related to Grain. Grain is related to Flour. 
Mentor is a type of Intellectual. Intellectual is related to Patent. Patent is a type of Document. Document is a type of Representation. 
Sugar <--RelatedTo--> Grain <--RelatedTo--> Flour 
Mentor --IsA--> Intellectual <--RelatedTo--> Patent --IsA--> Document --IsA--> Representation 