Dawn is related to Night. Night is related to Debut. Debut is related to Release. Sacrifice is a type of Release. 
Key is related to Item. Item is related to Cloud. Cloud is related to Related. Related is related to Birthday. 
Dawn <--RelatedTo--> Night <--RelatedTo--> Debut <--RelatedTo--> Release <--IsA-- Sacrifice 
Key <--RelatedTo--> Item <--RelatedTo--> Cloud <--RelatedTo--> Related <--RelatedTo--> Birthday 