user: Question: What is the year that Dewi Claire Schreefel is the champion?
Columns: ['Year', 'Champion', 'Country', 'Score', 'Tournament location', 'Purse ($)', 'Winners share ($)']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['2011', 'Brittany Johnston', 'United States', '199 (−11)', 'Wintonbury Hills Golf Course', 100000.0, 14000.0]
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Champion" = 'Dewi Claire Schreefel';