Vitamin is a type of Nutrient. Carbohydrate is a type of Nutrient. 
you are likely to find Wagon in/at/on Backyard. Wagon is similar to Automobile. Trunk is part of Automobile. Trunk is a synonym of Boot. 
Vitamin --IsA--> Nutrient <--IsA-- Carbohydrate 
Backyard <--AtLocation-- Wagon <--SimilarTo--> Automobile <--PartOf-- Trunk <--Synonym--> Boot 