Immediate is related to Family. Family is related to Adopt. Adopt is the opposite of Abandon. 
Endorse is related to Sign. Sign is related to Yield. Yield is a synonym of Produce. 
Immediate <--RelatedTo--> Family <--RelatedTo--> Adopt <--Antonym--> Abandon 
Endorse <--RelatedTo--> Sign <--RelatedTo--> Yield <--Synonym--> Produce 