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 are the distinct first names and cities of the students who have allergy either to milk or to cat?
SELECT DISTINCT T1.fname, T1.city_code FROM student AS T1 JOIN has_allergy AS T2 ON T1.stuid = T2.stuid WHERE T2.allergy = "Milk" OR T2.allergy = "Cat"
SELECT DISTINCT "T1"."fname", "T1"."city_code" FROM "student" "T1" JOIN "has_allergy" "T2" ON ("Cat" = "T2"."allergy" OR "Milk" = "T2"."allergy") AND "T1"."stuid" = "T2"."stuid"