Table: school_districts_ns
Columns: school_district
headquarters
sector
enrollment_2011_12
teachers_2008_09
student_teacher_ratio_2008_09
french_enrollment_2011_12
graduation_rate_2011_12
withdrawal_rate_2010_11

Question: What is the withdrawal rate for the school district with a graduation rate of 89.3%?
SQL: SELECT "withdrawal_rate_2010_11" FROM school_districts_ns WHERE "graduation_rate_2011_12" = '89.3%'

Question: Where is the headquarter located for the Annapolis Valley Regional School Board?
SQL: SELECT "headquarters" FROM school_districts_ns WHERE "school_district" = 'Annapolis Valley Regional School Board'

Question: What is their withdrawal rate for the school district with headquarters located in Truro?
SQL: SELECT "withdrawal_rate_2010_11" FROM school_districts_ns WHERE "headquarters" = 'Truro'

Question: What is the graduation rate for the school district with headquarters located in Sydney?
SQL: SELECT "graduation_rate_2011_12" FROM school_districts_ns WHERE "headquarters" = 'Sydney'