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  =  "Milk" OR T2.Allergy  =  "Cat"
[{'Fname': 'Linda', 'city_code': 'BAL'}, {'Fname': 'Lisa', 'city_code': 'PIT'}, {'Fname': 'Derek', 'city_code': 'HOU'}, {'Fname': 'Mark', 'city_code': 'DET'}, {'Fname': 'David', 'city_code': 'NYC'}]