Value is related to Quarter. Quarter is related to Coin. Coin is related to Valuable. Valuable is related to Silver. 
Unlike is the opposite of Similar. Similar is a different concept from Difference. Difference is a synonym of Conflict. 
Value <--RelatedTo--> Quarter <--RelatedTo--> Coin <--RelatedTo--> Valuable <--RelatedTo--> Silver 
Unlike <--Antonym--> Similar <--DistinctFrom--> Difference <--Synonym--> Conflict 