What are the names of the county that the delegates on "Appropriations" committee belong to?
SELECT T1.County_name FROM county AS T1 JOIN election AS T2 ON T1.County_id  =  T2.District WHERE T2.Committee  =  "Appropriations"
names of the county = County_name; delegates on 'Appropriations' committee = T2.Committee = 'Appropriations'; belong to refers to the JOIN condition between tables 'county' and 'election' on County_id and District respectively;