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:
| Club | Played | Drawn | Lost | Points for | Points against | Tries for | Tries against | Try bonus | Losing bonus | Points |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Club | Played | Drawn | Lost | Points for | Points against | Tries for | Tries against | Try bonus | Losing bonus | Points |
| Glynneath RFC | 22 | 0 | 1 | 665 | 251 | 95 | 28 | 14 | 1 | 99 |
| Kenfig Hill RFC | 22 | 0 | 2 | 898 | 296 | 132 | 33 | 15 | 1 | 96 |
| Aberavon Green Stars RFC | 22 | 1 | 6 | 624 | 263 | 88 | 24 | 8 | 2 | 72 |
| Seven Sisters RFC | 22 | 0 | 9 | 621 | 350 | 82 | 41 | 10 | 7 | 69 |
| Ystalyfera RFC | 22 | 0 | 7 | 565 | 437 | 71 | 50 | 7 | 1 | 68 |
| Brynamman RFC | 22 | 0 | 11 | 517 | 440 | 59 | 53 | 5 | 5 | 54 |
| Pencoed RFC | 22 | 1 | 12 | 459 | 536 | 57 | 67 | 5 | 2 | 45 |
| Morriston RFC | 22 | 1 | 14 | 384 | 596 | 50 | 85 | 5 | 3 | 38 |
| Bryncoch RFC | 22 | 1 | 15 | 455 | 614 | 51 | 86 | 4 | 4 | 34 |
| Taibach RFC | 22 | 0 | 16 | 296 | 518 | 34 | 68 | 2 | 4 | 30 |
| Nantyffyllon RFC | 22 | 1 | 17 | 294 | 679 | 35 | 92 | 2 | 2 | 22 |
| Cwmavon RFC | 22 | 1 | 19 | 237 | 1035 | 25 | 152 | 0 | 2 | 12 |
| Correct as of 27 May 2012 | Correct as of 27 May 2012 | Correct as of 27 May 2012 | Correct as of 27 May 2012 | Correct as of 27 May 2012 | Correct as of 27 May 2012 | Correct as of 27 May 2012 | Correct as of 27 May 2012 | Correct as of 27 May 2012 | Correct as of 27 May 2012 | Correct as of 27 May 2012 |
Question:
What is listed for the Tries against that has a Played of 22, along with a Club of Ystalyfera RFC?
Answer:
50.0