Machine can be used for Work. Clerk is a type of Work. Clerk is a type of Employee. Ceo is a type of Employee. 
Burden is a synonym of Charge. Fare is a type of Charge. Diet is a type of Fare. Diet is related to Lose. 
Machine --UsedFor--> Work <--IsA-- Clerk --IsA--> Employee <--IsA-- Ceo 
Burden <--Synonym--> Charge <--IsA-- Fare <--IsA-- Diet <--RelatedTo--> Lose 