Rumor is a type of Information. Information is a type of Democracy. Democracy is related to Republic. Republican is derived from Republic. 
Comfort is related to Soup. Soup is related to Drinking. 
Rumor --IsA--> Information --IsA--> Democracy <--RelatedTo--> Republic <--DerivedFrom-- Republican 
Comfort <--RelatedTo--> Soup <--RelatedTo--> Drinking 