user: Question: What are the districts represented by the Democratic Party and a Committee in Economic Matters?
Columns: ['District', 'Counties Represented', 'Delegate', 'Party', 'First Elected', 'Committee']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['05.2 5B', 'Carroll, Baltimore County', 'Kach, Wade Wade Kach', 'Republican', 1974.0, 'Health and Government Operations']
SQL:

assistant: SELECT "District" FROM "Table" WHERE "Committee" = 'Economic Matters' AND "Party" = 'Democratic';