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"
Find the different first names and cities of the students who have allergy to milk or 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 as t1 join has_allergy as t2 on t1 . stuid = t2 . stuid where t2 . allergy = value or t2 . allergy = value
Find the different first names and cities of the students who have allergy to milk or cat .