Soup is related to Thin. Thin is the opposite of Thick. Thick is a synonym of Crowded. 
you are likely to find Pizza in/at/on Oven. Pizza is related to Blue. Blue is related to Primary. Primary is related to Elementary. 
Soup <--RelatedTo--> Thin <--Antonym--> Thick <--Synonym--> Crowded 
Oven <--AtLocation-- Pizza <--RelatedTo--> Blue <--RelatedTo--> Primary <--RelatedTo--> Elementary 