user: Question: What is the highest number against on 12/04/1969?
Columns: ['Opposing Teams', 'Against', 'Date', 'Venue', 'Status']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['Ireland', 17.0, '08/02/1969', 'Lansdowne Road , Dublin', 'Five Nations']
SQL:

assistant: SELECT MAX("Against") FROM "Table" WHERE "Date" = '12/04/1969';