Question: What are the distinct first names of the students who have vice president votes and reside in a city whose city code is not PIT?
SQL: SELECT DISTINCT T1.Fname FROM STUDENT AS T1 JOIN VOTING_RECORD AS T2 ON T1.StuID  =  T2.VICE_PRESIDENT_Vote EXCEPT SELECT DISTINCT Fname FROM STUDENT WHERE city_code  =  "PIT"