Sensation is a synonym of Sense. Sense is related to Logic. 
Fist is made of Hand. you are likely to find Hand in/at/on Pocket. Pocket is related to Change. Crack is a type of Change. 
Sensation <--Synonym--> Sense <--RelatedTo--> Logic 
Fist --MadeOf--> Hand --AtLocation--> Pocket <--RelatedTo--> Change <--IsA-- Crack 