Charter is a type of Document. Charter is a type of License. Driving requires License. 
Transaction is related to Bet. Bet is related to Casino. you are likely to find Money in/at/on Casino. Money is related to Buy. 
Document <--IsA-- Charter --IsA--> License <--HasPrerequisite-- Driving 
Transaction <--RelatedTo--> Bet <--RelatedTo--> Casino <--AtLocation-- Money <--RelatedTo--> Buy 