SELECT fname FROM student WHERE city_code  =  'PHL' AND age BETWEEN 20 AND 25
What is the first name of the students who are in age 20 to 25 and living in PHL city?
create table Student (
        StuID        INTEGER PRIMARY KEY,
        LName        VARCHAR(12),
        Fname        VARCHAR(12),
        Age      INTEGER,
        Sex      VARCHAR(1),
        Major        INTEGER,
        Advisor      INTEGER,
        city_code    VARCHAR(3)
 );
create table Dorm (
       dormid		INTEGER,
       dorm_name	VARCHAR(20),
       student_capacity	INTEGER,
       gender			VARCHAR(1)
) ;
create table Dorm_amenity (
       amenid			INTEGER,
       amenity_name		VARCHAR(25)
) ;
create table Has_amenity (
       dormid			INTEGER,
       amenid				INTEGER,
	FOREIGN KEY (dormid) REFERENCES `Dorm`(dormid),
	FOREIGN KEY (amenid) REFERENCES `Dorm_amenity`(amenid)
);
create table Lives_in (
       stuid 	      INTEGER,
       dormid		INTEGER,
       room_number	INTEGER,
	FOREIGN KEY (stuid) REFERENCES `Student`(StuID),
        FOREIGN KEY (dormid) REFERENCES `Dorm`(dormid)
);
INSERT into Student values ( 1001, 'Smith', 'Linda', 18, 'F', 600, 1121,'BAL');
INSERT into Dorm values (100,'Smith Hall',85,'X');
INSERT into Dorm_amenity values ( 900 , 'TV Lounge' ) ;
INSERT into Has_amenity values ( 109 ,  900) ;
INSERT into Lives_in values ( 1001  , 109  , 105  ) ;
INSERT INTO Student VALUES [(1001, 'Smith', 'Linda', 18, 'F', 600, 1121, 'BAL'), (1002, 'Kim', 'Tracy', 19, 'F', 600, 7712, 'HKG')]
INSERT INTO Dorm VALUES [(100, 'Smith Hall', 85, 'X'), (110, 'Bud Jones Hall', 116, 'M')]
INSERT INTO Dorm_amenity VALUES [(900, 'TV Lounge'), (901, 'Study Room')]
INSERT INTO Has_amenity VALUES [(109, 900), (109, 901)]
INSERT INTO Lives_in VALUES [(1001, 109, 105), (1002, 100, 112)]