Conversion is a type of Exchange. Exchange is related to Give. Give is related to Appoint. Appoint is related to Person. 
Deposit is related to Transaction. Transaction is related to Sale. Sales is a form of Sale. Sales is related to Tax. 
Conversion --IsA--> Exchange <--RelatedTo--> Give <--RelatedTo--> Appoint <--RelatedTo--> Person 
Deposit <--RelatedTo--> Transaction <--RelatedTo--> Sale <--FormOf-- Sales <--RelatedTo--> Tax 