user: Question: Which Height Metres / feet has a Rank of 8, and Floors of 3x17?
Columns: ['Rank', 'Name', 'Location', 'Height Metres / feet', 'Floors']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Crystal Palace', 'Ljubljana', 'metres (ft)', '20']
SQL:

assistant: SELECT "Height Metres / feet" FROM "Table" WHERE "Rank" = 8.0 AND "Floors" = '3x17';