|''time is now''|2004/05/05 12:01|

|''begin transaction for client''| Joanna |''staff''| Bill|
|''return items''|5||coffee dispenser|
|''refund cash $''|18.50|
|''complete transaction''|

|''rentals of client''|Joanna|
|''rental item''|''count''|''end date''|

|''rental item subset''|
|''name''|''free count''|
|coffee dispenser|10|
