CREATE TABLE lives_in (stuid NUMBER, dormid NUMBER, room_number NUMBER)
CREATE TABLE dorm (dormid NUMBER, dorm_name CLOB, student_capacity NUMBER, gender CLOB)
CREATE TABLE dorm_amenity (amenid NUMBER, amenity_name CLOB)
CREATE TABLE student (stuid NUMBER, lname CLOB, fname CLOB, age NUMBER, sex CLOB, major NUMBER, advisor NUMBER, city_code CLOB)
CREATE TABLE has_amenity (dormid NUMBER, amenid NUMBER)

What is the first name of the students who are in age 20 to 25 and living in PHL city?
SELECT fname FROM student WHERE city_code = 'PHL' AND age BETWEEN 20 AND 25
SELECT "fname" FROM "student" WHERE "age" <= 25 AND "age" >= 20 AND "city_code" = 'PHL'