Candidate is related to Running. Running is related to Ground. Ground is a different concept from Ceiling. 
Can is related to Sheep. Sheep is related to Owner. Owner is related to Boss. 
Candidate <--RelatedTo--> Running <--RelatedTo--> Ground <--DistinctFrom--> Ceiling 
Can <--RelatedTo--> Sheep <--RelatedTo--> Owner <--RelatedTo--> Boss 