user: Question: What counties represented have a First Elected of 2006 and a Ways and Means Committee?
Columns: ['District', 'Counties Represented', 'Delegate', 'Party', 'First Elected', 'Committee']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['21', "Anne Arundel , Prince George's", 'Frush, Barbara A. Barbara A. Frush', 'Democratic', 1994.0, 'Environmental Matters']
SQL:

assistant: SELECT "Counties Represented" FROM "Table" WHERE "First Elected" = 2006.0 AND "Committee" = 'Ways and Means';