Which county do the delegates on "Appropriations" committee belong to? Give me the county names.
SELECT T1.County_name FROM county AS T1 JOIN election AS T2 ON T1.County_id  =  T2.District WHERE T2.Committee  =  "Appropriations"
delegates on a specific committee refers to filtering by Committee = 'Appropriations'; county names refers to County_name; joining tables to match counties with their delegates involves using JOIN on county and election tables with a condition on County_id and District.