Retailer is derived from Retail. Retailer is related to Seller. Bear is a type of Seller. Load is derived from Bear. 
Can is related to Capable. Capable is a synonym of Subject. Subject is the opposite of Citizen. Voter is a type of Citizen. 
Retail <--DerivedFrom-- Retailer <--RelatedTo--> Seller <--IsA-- Bear <--DerivedFrom-- Load 
Can <--RelatedTo--> Capable <--Synonym--> Subject <--Antonym--> Citizen <--IsA-- Voter 