Relieve is a type of Better. Comfort is a type of Relieve. Comfort is related to Soup. 
Extension is a type of String. Extension is related to Hand. Hand is related to Connection. 
Better <--IsA-- Relieve <--IsA-- Comfort <--RelatedTo--> Soup 
String <--IsA-- Extension <--RelatedTo--> Hand <--RelatedTo--> Connection 