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 Sorted | Title | Doctor | Featuring | Released |
| --- | --- | --- | --- | --- |
| 6EB/A | The Elite | 5th | Tegan , Nyssa , Dalek | October 2011 |
| 6EB/B | Hexagora | 5th | Tegan, Nyssa | November 2011 |
| 6EB/C | The Children of Seth | 5th | Tegan, Nyssa | December 2011 |
| 6Y/AI | The Guardians of Prophecy | 6th | Peri | May 2012 |
| 6Y/AJ | Power Play | 6th | Peri, Victoria | June 2012 |
| 6Y/AK | The First Sontarans | 6th | Peri, Sontarans , Rutans | July 2012 |
| H/C | The Masters of Luxor | 1st | Susan Foreman, Ian Chesterton, Barbara Wright | August 2012 |
| XX/A | The Rosemariners | 2nd | Jamie McCrimmon, Zoe Heriot | September 2012 |
Question:
what is the released when the series is sorted 6y/ai?
Answer:
May 2012