Onion is the opposite of Garlic. Garlic is related to Flavor. Flavor is related to Sugar. Sugar is related to Dessert. 
Pie is related to Chicken. 
Onion <--Antonym--> Garlic <--RelatedTo--> Flavor <--RelatedTo--> Sugar <--RelatedTo--> Dessert 
Pie <--RelatedTo--> Chicken 