user: Question: Which Number has a Home Club of broomstones, and a Year End smaller than 1999?
Columns: ['Number', 'Year Start', 'Year End', 'Name', 'Home Club']
Types: ['real', 'real', 'real', 'text', 'text']
Sample row: [1.0, 1867.0, 1870.0, 'Bell, David', 'Caledonian']
SQL:

assistant: SELECT "Number" FROM "Table" WHERE "Home Club" = 'broomstones' AND "Year End" < 1999.0;