CREATE TABLE city (city_id NUMBER, county_id NUMBER, name CLOB, white NUMBER, black NUMBER, amerindian NUMBER, asian NUMBER, multiracial NUMBER, hispanic NUMBER)
CREATE TABLE county_public_safety (county_id NUMBER, name CLOB, population NUMBER, police_officers NUMBER, residents_per_officer NUMBER, case_burden NUMBER, crime_rate NUMBER, police_force CLOB, location CLOB)

List the distinct police forces of counties whose location is not on east side.
SELECT DISTINCT police_force FROM county_public_safety WHERE location <> "East"
SELECT DISTINCT "police_force" FROM "county_public_safety" WHERE "East" <> "location"