user: Question: What is the highest number listed?
Columns: ['Number', 'Builder', 'Built', 'Rebuilt', 'Name as rebuilt', 'Scrapped/Sold']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [33.0, 'York Rd', 'Cannot handle non-empty timestamp argument! 1902', 'Cannot handle non-empty timestamp argument! 1928', 'Binevanagh', 'Cannot handle non-empty timestamp argument! 1949']
SQL:

assistant: SELECT MAX("Number") FROM "Table";