Charge is a synonym of Mission. Mission is related to Operation. Operation is related to General. General is related to Person. 
Exit is a type of Opening. Opening is related to Debut. Debut is a type of Introduce. 
Charge <--Synonym--> Mission <--RelatedTo--> Operation <--RelatedTo--> General <--RelatedTo--> Person 
Exit --IsA--> Opening <--RelatedTo--> Debut --IsA--> Introduce 