user: Question: Which NIR number is for the TSO (ex-BR Class 488 unit 488305) type that has a 6082 / 72605 BR number?
Columns: ['NIR Number', 'Introduced', 'BR Number(s)', 'Built', 'Type']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['911 / 8911', '1981', '14104', '1969 Derby', 'Generator Van (ex- Mark 2B BFK)']
SQL:

assistant: SELECT "NIR Number" FROM "Table" WHERE "Type" = 'TSO (ex-BR Class 488 unit 488305)' AND "BR Number(s)" = '6082 / 72605';