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:
| Call sign | Frequency MHz | City of license | ERP W | Class | FCC info |
| --- | --- | --- | --- | --- | --- |
| W291CH | 106.1 | Pittsfield, Massachusetts | 10.0 | D | FCC |
| W242AT | 96.3 | Williamstown, Massachusetts | 250.0 | D | FCC |
| W252BG | 98.3 | Lee, Massachusetts | 13.0 | D | FCC |
| W254AU | 98.7 | Great Barrington, Massachusetts | 250.0 | D | FCC |
| W266AW | 101.1 | North Adams, Massachusetts | 10.0 | D | FCC |
Question:
If the call sign is w291ch what's the ERP W corresponding to that sign?
Answer:
10.0