Marry is related to Husband. Husband is related to Uncle. Uncle is related to Father. 
Brain is related to Shock. Shock is a synonym of Impact. Impact is related to Tap. 
Marry <--RelatedTo--> Husband <--RelatedTo--> Uncle <--RelatedTo--> Father 
Brain <--RelatedTo--> Shock <--Synonym--> Impact <--RelatedTo--> Tap 