Stand is the opposite of Walk. Alley can be used for Walk. Alley is a synonym of Aisle. Aisle is related to Walking. 
Spouse is related to Affair. Affair is the opposite of Loyal. Loyal is related to Dog. 
Stand <--Antonym--> Walk <--UsedFor-- Alley <--Synonym--> Aisle <--RelatedTo--> Walking 
Spouse <--RelatedTo--> Affair <--Antonym--> Loyal <--RelatedTo--> Dog 