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

What is the type of allergy Cat?
SELECT allergytype FROM allergy_type WHERE allergy = "Cat"
SELECT "allergytype" FROM "allergy_type" WHERE "Cat" = "allergy"