CREATE TABLE entrepreneur (entrepreneur_id NUMBER, people_id NUMBER, company CLOB, money_requested NUMBER, investor CLOB)
CREATE TABLE people (people_id NUMBER, name CLOB, height NUMBER, weight NUMBER, date_of_birth CLOB)

What are the investors of entrepreneurs and the corresponding number of entrepreneurs invested by each investor?
SELECT investor, COUNT(*) FROM entrepreneur GROUP BY investor
SELECT "investor", COUNT(*) FROM "entrepreneur" GROUP BY "investor"