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:
| Series | Title | Broadcasts (TV) 1 | Episodes (TV+extra) 2 | Directors | Aired in Japan 3 | US Release Date |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Galaxy Angel | 24.0 | 24+2 | Morio Asaka , Yoshimitsu Ohashi | 7 April 2001 to 29 September 2001 | 27 June 2006 |
| 2 | Galaxy Angel Z | 9.0 | 18+1 | Morio Asaka, Yoshimitsu Ohashi | 3 February 2002 to 31 March 2002 | 25 July 2006 |
| 3 4 | Galaxy Angel A | 13.0 | 26 | Shigehito Takayanagi | 10 November 2002 to 29 December 2002 | 27 December 2006 |
| 3 4 | Galaxy Angel AA | 13.0 | 25+2 | Shigehito Takayanagi | 5 January 2003 to 30 March 2003 | 19 August 2008 |
| 3 4 | Galaxy Angel S 5 | 1.0 | 2 | Shigehito Takayanagi | 21 December 2003 | 6 May 2008 |
Question:
When galaxy angel aa is the title what was the series?
Answer:
3 4