Corn is related to Meal. Meal is related to Break. Break is the opposite of Assemble. Assemble is related to Group. 
Pair is a type of Gathering. Pair is related to Eye. 
Corn <--RelatedTo--> Meal <--RelatedTo--> Break <--Antonym--> Assemble <--RelatedTo--> Group 
Gathering <--IsA-- Pair <--RelatedTo--> Eye 