user: Question: What is the Gender of students at a school with a Decile of 5 and a Roll of 90?
Columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Hapuku School', '1–8', 'Coed', 'Hapuku', 'State', 4.0, 23.0]
SQL:

assistant: SELECT "Gender" FROM "Table" WHERE "Decile" = 5.0 AND "Roll" = 90.0;