Assignment is related to Case. Case is related to Criminal. Criminal is a synonym of Offender. 
Hard is related to Firm. Firm is related to Organization. Organization is related to Care. Care is related to Responsibility. 
Assignment <--RelatedTo--> Case <--RelatedTo--> Criminal <--Synonym--> Offender 
Hard <--RelatedTo--> Firm <--RelatedTo--> Organization <--RelatedTo--> Care <--RelatedTo--> Responsibility 