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)

Return the names of entrepreneurs do no not have the investor Rachel Elnaugh.
SELECT T2.name FROM entrepreneur AS T1 JOIN people AS T2 ON T1.people_id = T2.people_id WHERE T1.investor <> "Rachel Elnaugh"
SELECT "T2"."name" FROM "entrepreneur" "T1" JOIN "people" "T2" ON "T1"."people_id" = "T2"."people_id" WHERE "Rachel Elnaugh" <> "T1"."investor"