user: Question: Who won when NP Cooper AV Cooke was runner up?
Columns: ['Year', 'Winners', 'Club', 'Time', 'Runners-up']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1946.0, 'RE Panelo ED Chafuen', 'Buenos Aires RC', '8.8 4 L', 'G G Newton H L Warren']
SQL:

assistant: SELECT "Winners" FROM "Table" WHERE "Runners-up" = 'NP Cooper AV Cooke';