Column: event_status
Name: event status
Description: the status of the event
Data format: text
Value description: Closed / Open/ Planning 
commonsense evidence: 
� Closed: It means that the event is closed. The spent and the remaining won't change anymore.
� Open: It means that the event is already opened. The spent and the remaining will change with new expenses.
� Planning: The event is not started yet but is planning. The spent and the remaining won't change at this stage.