A sub property of object. The object that replaces.

Assets required to secure loan or credit repayments. It may take form of third party pledge, goods, financial instruments (cash, securities, etc.)

The thing -- flight, event, restaurant,etc. being reserved.

The result produced in the action. e.g. John wrote *a book*.

The tangible thing generated by the service, e.g. a passport, permit, etc.

A sub property of object. The collection target of the action.