user: Question: Which nationality's distance was 500m before 2012, when the record was 1:37.071s?
Columns: ['Distance', 'Event', 'Record', 'Nationality', 'Year', 'Location']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['200m', 'K1', '38.970s', 'Germany', 1994.0, 'Milano , Italy']
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Distance" = '500m' AND "Year" < 2012.0 AND "Record" = '1:37.071s';