Dog wants (to) Dig. Dog is related to Attack. Attack is related to Pain. 
Feature is related to Jaw. Chop is a type of Jaw. Chop is related to Attack. 
Dig <--Desires-- Dog <--RelatedTo--> Attack <--RelatedTo--> Pain 
Feature <--RelatedTo--> Jaw <--IsA-- Chop <--RelatedTo--> Attack 