CREATE TABLE company (Company_ID NUMBER, Rank NUMBER, Company CLOB, Headquarters CLOB, Main_Industry CLOB, Sales_billion FLOAT, Profits_billion FLOAT, Assets_billion FLOAT, Market_Value FLOAT)
CREATE TABLE station_company (Station_ID NUMBER, Company_ID NUMBER, Rank_of_the_Year NUMBER)
CREATE TABLE gas_station (Station_ID NUMBER, Open_Year NUMBER, Location CLOB, Manager_Name CLOB, Vice_Manager_Name CLOB, Representative_Name CLOB)

Show the company name with the number of gas station in a pie chart.
SELECT Company, COUNT(*) FROM station_company AS T1 JOIN company AS T2 ON T1.Company_ID = T2.Company_ID GROUP BY T1.Company_ID
SELECT "Company", COUNT(*) FROM "station_company" "T1" JOIN "company" "T2" ON "T1"."Company_ID" = "T2"."Company_ID" GROUP BY "T1"."Company_ID"