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 |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Club | Played | Drawn | Lost | Points for | Points against | Tries for | Tries against | Try bonus | Losing bonus |
| Mountain Ash RFC | 22 | 0 | 0 | 791 | 280 | 103 | 32 | 15 | 0 |
| Tredegar RFC | 22 | 0 | 3 | 786 | 361 | 107 | 39 | 17 | 2 |
| Llantrisant RFC | 22 | 0 | 9 | 617 | 520 | 79 | 71 | 11 | 2 |
| Rhydyfelin RFC | 22 | 1 | 8 | 593 | 489 | 87 | 61 | 8 | 2 |
| Penallta RFC | 22 | 0 | 11 | 433 | 407 | 56 | 49 | 7 | 4 |
| Tylorstown RFC | 22 | 1 | 11 | 501 | 517 | 66 | 63 | 7 | 5 |
| Fleur De Lys RFC | 22 | 1 | 12 | 535 | 575 | 65 | 70 | 10 | 5 |
| Llantwit Fardre RFC | 22 | 1 | 11 | 464 | 504 | 60 | 64 | 3 | 2 |
| Ynysybwl RFC | 22 | 1 | 12 | 470 | 564 | 56 | 70 | 4 | 4 |
| Brynmawr RFC | 22 | 1 | 13 | 474 | 560 | 61 | 71 | 7 | 5 |
| Penarth RFC | 22 | 0 | 17 | 335 | 556 | 37 | 74 | 2 | 4 |
| Caerphilly RFC | 22 | 0 | 22 | 295 | 961 | 32 | 145 | 2 | 2 |
| Correct as of 26 May 2012 | Correct as of 26 May 2012 | Correct as of 26 May 2012 | Correct as of 26 May 2012 | Correct as of 26 May 2012 | Correct as of 26 May 2012 | Correct as of 26 May 2012 | Correct as of 26 May 2012 | Correct as of 26 May 2012 | Correct as of 26 May 2012 |
Question:
Which of the clubs had 556 points against?
Answer:
Penarth RFC