CREATE TABLE voting_record (stuid NUMBER, registration_date CLOB, election_cycle CLOB, president_vote NUMBER, vice_president_vote NUMBER, secretary_vote NUMBER, treasurer_vote NUMBER, class_president_vote NUMBER, class_senator_vote NUMBER)
CREATE TABLE student (stuid NUMBER, lname CLOB, fname CLOB, age NUMBER, sex CLOB, major NUMBER, advisor NUMBER, city_code CLOB)

What are the first names and last names of the students who are 18 years old and have vice president votes.
SELECT DISTINCT T1.fname, T1.lname FROM student AS T1 JOIN voting_record AS T2 ON T1.stuid = T2.vice_president_vote WHERE T1.age = 18
SELECT DISTINCT "T1"."fname", "T1"."lname" FROM "student" "T1" JOIN "voting_record" "T2" ON "T1"."stuid" = "T2"."vice_president_vote" WHERE "T1"."age" = 18