Closest is related to Family. Family is a synonym of Household. Household is related to Domestic. Domestic is related to Foreign. 
Group is related to Collective. Collective is a type of Enterprise. Enterprise is related to Science. Science is related to Chemistry. 
Closest <--RelatedTo--> Family <--Synonym--> Household <--RelatedTo--> Domestic <--RelatedTo--> Foreign 
Group <--RelatedTo--> Collective --IsA--> Enterprise <--RelatedTo--> Science <--RelatedTo--> Chemistry 