user: Question: Name the extension for University of Washington
Columns: ['Station', 'Extension', 'City/Neighborhood', 'Projected opening', 'Transit Connections', 'Park and ride?']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Capitol Hill U', 'University Link', 'Capitol Hill, Seattle', 2016.0, 'Metro , First Hill Streetcar', 'No']
SQL:

assistant: SELECT "Extension" FROM "Table" WHERE "City/Neighborhood" = 'University of Washington';