Lead is related to Role. Role is related to Job. Job is related to Doctor. Doctor is a different concept from Patient. 
Measure is related to Sound. Sound is related to Projection. 
Lead <--RelatedTo--> Role <--RelatedTo--> Job <--RelatedTo--> Doctor <--DistinctFrom--> Patient 
Measure <--RelatedTo--> Sound <--RelatedTo--> Projection 