Snap is related to Bend. Bend is related to Stretch. Stretch is related to Cool. 
Ill is a type of River. River is related to Wide. Wide is related to Comprehensive. 
Snap <--RelatedTo--> Bend <--RelatedTo--> Stretch <--RelatedTo--> Cool 
Ill --IsA--> River <--RelatedTo--> Wide <--RelatedTo--> Comprehensive 