user: Question: Which Date has an Against smaller than 21, and a Status of Second Test?
Columns: ['Opposing Team', 'Against', 'Date', 'Venue', 'Status']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['San Isidro Club', 14.0, '16/05/1981', 'Buenos Aires', 'Tour Match']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Against" < 21.0 AND "Status" = 'Second Test';