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:
| Network name | Flagship | Programming type | Owner | Affiliates |
| --- | --- | --- | --- | --- |
| Canal de las Estrellas | XEW 2 | soap operas, retro movies and sports | Televisa | 5 |
| Canal 5 | XHGC 5 | cartoons, movies, and series | Televisa | 4 |
| TV MÁS | XHGV 4 | educational and cultural | Gobierno de Veracruz | 8 |
| Azteca 7 | XHIMT 7 | movies, series, and sports | TV Azteca | 3 |
| Galavisión | XEQ 9 | retro and sports | Televisa | 2 |
| Once TV | XEIPN 11 | educational | Instituto Politecnico Nacional | 2 |
| Azteca 13 | XHDF 13 | news, soap operas, and sports | TV Azteca | 4 |
| Televisa Regional |  | select from Televisa networks1 | Televisa | 2 |
Question:
tell me the number of stations tv azteca owns.
Answer:
2