user: Question: What is the constructor for 9 May?
Columns: ['Rnd', 'Race', 'Date', 'Location', 'Pole Position', 'Fastest Lap', 'Race Winner', 'Constructor', 'Report']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'South African Grand Prix', '23 January', 'Kyalami', 'René Arnoux', 'Alain Prost', 'Alain Prost', 'Renault', 'Report']
SQL:

assistant: SELECT "Constructor" FROM "Table" WHERE "Date" = '9 May';