While is a synonym of Piece. Piece is related to Candy. you are likely to find Candy in/at/on Mall. Mall is related to Topic. 
Satisfaction is related to Content. Content is related to Information. Practice is a type of Information. Practice is a synonym of Do. 
While <--Synonym--> Piece <--RelatedTo--> Candy --AtLocation--> Mall <--RelatedTo--> Topic 
Satisfaction <--RelatedTo--> Content <--RelatedTo--> Information <--IsA-- Practice <--Synonym--> Do 