CREATE TABLE student (stuid NUMBER, lname CLOB, fname CLOB, age NUMBER, sex CLOB, major NUMBER, advisor NUMBER, city_code CLOB)
CREATE TABLE allergy_type (allergy CLOB, allergytype CLOB)
CREATE TABLE has_allergy (stuid NUMBER, allergy CLOB)

Find the last name and age of the student who has allergy to both milk and cat.
SELECT lname, age FROM student WHERE stuid IN (SELECT stuid FROM has_allergy WHERE allergy = "Milk" INTERSECT SELECT stuid FROM has_allergy WHERE allergy = "Cat")
SELECT "lname", "age" FROM "student" WHERE "stuid" IN (SELECT "stuid" FROM "has_allergy" WHERE "Milk" = "allergy" INTERSECT SELECT "stuid" FROM "has_allergy" WHERE "Cat" = "allergy")