Action is related to Crawl. Crawl is a type of Travel. Travel is related to Ride. Ride is related to Sorry. 
Improved is a form of Improve. Improved is related to Better. Better is etymologically related to Battle. 
Action <--RelatedTo--> Crawl --IsA--> Travel <--RelatedTo--> Ride <--RelatedTo--> Sorry 
Improve <--FormOf-- Improved <--RelatedTo--> Better --EtymologicallyRelatedTo--> Battle 