Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Team | Outgoing manager | Manner of departure | Date of vacancy | Replaced by | Date of appointment | Position in table |
| --- | --- | --- | --- | --- | --- | --- |
| Nejapa | Mauricio Cienfuegos | Mutual consent | 14 August 2008 | Daniel Uberti | 5 September 2008 | 10th |
| Firpo | Gerardo Reinoso | Sacked | 25 August 2008 | Oscar Benitez | 2 September 2008 | 7th |
| Balboa | Gustavo de Simone | Sacked | 30 August 2008 | Roberto Gamarra | 5 September 2008 | 10th |
| Alianza | Pablo Centrone | Sacked | 14 September 2008 | Carlos Jurado | 16 September 2008 | 5th |
| Firpo | Oscar Benítez | Sacked | 9 December 2008 | Agustín Castillo | 23 December 2008 | Post-season (6th) |
| Águila | Agustín Castillo | Sacked | 15 December 2008 | Pablo Centrone | 24 December 2008 | Post-season (Semifinals) |
| FAS | Nelson Ancheta | Sacked | 27 December 2008 | Roberto Gamarra | 1 January 2009 | Post-season (Semifinals) |
| Nejapa | Daniel Uberti | Sacked | 29 December 2008 | Nelson Ancheta | 29 December 2008 | Post-season (10th) |
| Balboa | Roberto Gamarra | Mutual consent | 1 January 2009 | Carlos De Toro | 16 January 2009 | Post-season (7th) |
| Independiente | Jorge Abrego | Sacked | December 2008 | Ramón Sánchez | December 2009 | Post-season (8th) |
Question:
what is the date of vacancy when the team is firpo and replaced by is oscar benitez?
Answer:
25 August 2008