query: SELECT Advisor FROM STUDENT WHERE city_code  =  "BAL"
question: Show the advisors of the students whose of residence have city code "BAL".
query_toks: SELECT Advisor FROM STUDENT WHERE city_code = `` BAL ''
query_toks_no_value: select advisor from student where city_code = value
question_toks: Show the advisors of the students whose of residence have city code "BAL".