Buck is a synonym of Button. Button is related to Doll. Doll is related to Baby. Baby is related to Tiny. 
Self is the opposite of Murder. Murder is related to Gun. 
Buck <--Synonym--> Button <--RelatedTo--> Doll <--RelatedTo--> Baby <--RelatedTo--> Tiny 
Self <--Antonym--> Murder <--RelatedTo--> Gun 