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 | Won | Drawn | Lost | Points for | Points against | Points difference | Bonus Points | Points |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Club | Played | Won | Drawn | Lost | Points for | Points against | Points difference | Bonus Points | Points |
| North Kildare | 6 | 6 | 0 | 0 | 143 | 39 | 104 | 3 | 27 |
| Athy | 6 | 6 | 0 | 0 | 121 | 58 | 63 | 0 | 24 |
| Railway Union | 6 | 4 | 0 | 2 | 139 | 68 | 71 | 2 | 18 |
| Balbriggan | 6 | 4 | 0 | 2 | 144 | 98 | 46 | 2 | 18 |
| Wexford Wanderers | 6 | 3 | 0 | 3 | 96 | 104 | −8 | 1 | 13 |
| CYM | 7 | 2 | 0 | 5 | 83 | 133 | −50 | 2 | 10 |
| Malahide | 7 | 1 | 1 | 5 | 71 | 135 | −64 | 3 | 9 |
| Birr | 6 | 1 | 0 | 5 | 39 | 72 | −33 | 1 | 5 |
| Swords | 6 | 0 | 1 | 5 | 26 | 155 | −129 | 0 | 2 |
Question:
when the points for is 139 is points difference?
Answer:
1.0