Better is similar to Improved. Improved is a form of Improve. Improve is a synonym of Enhance. 
Knock is a synonym of Belt. Belt is related to Hold. Hold is a type of Include. 
Better <--SimilarTo--> Improved --FormOf--> Improve <--Synonym--> Enhance 
Knock <--Synonym--> Belt <--RelatedTo--> Hold --IsA--> Include 