user: Question: How many netflow version are there when the vendor and type is Enterasys Switches?
Columns: ['Vendor and type', 'Models', 'NetFlow Version', 'Implementation', 'Comments']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Cisco IOS-XR routers', 'CRS , ASR9000 old 12000', 'v5, v8, v9', 'Software running on line card CPU', 'Comprehensive support for IPv6 and MPLS']
SQL:

assistant: SELECT COUNT("NetFlow Version") FROM "Table" WHERE "Vendor and type" = 'Enterasys Switches';