user: Question: How many different ranks does the Cathay Pacific Plaza 2 have?
Columns: ['Rank', 'Building [A ]', 'City', 'Country', 'Height (m)', 'Height (ft)', 'Floors', 'Built']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: [1.0, 'Burj Khalifa', 'Dubai', 'UAE', '828m', '2,717ft', 163.0, '2010']
SQL:

assistant: SELECT COUNT("Rank") FROM "Table" WHERE "Building [A ]" = 'Cathay Pacific Plaza 2';