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 is the investor that has invested in the most number of entrepreneurs?
SELECT investor FROM entrepreneur GROUP BY investor ORDER BY COUNT(*) DESC LIMIT 1
SELECT "investor" FROM "entrepreneur" GROUP BY "investor" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY