Carbohydrate is related to Bread. Bread is related to Bake. Bake is related to Burn. Burn is related to Smell. 
Girlfriend is a synonym of Girl. Girl is related to Purse. Purse is related to Woman. Woman is related to Body. 
Carbohydrate <--RelatedTo--> Bread <--RelatedTo--> Bake <--RelatedTo--> Burn <--RelatedTo--> Smell 
Girlfriend <--Synonym--> Girl <--RelatedTo--> Purse <--RelatedTo--> Woman <--RelatedTo--> Body 