user: Question: What is the earliest year in which the 1st price went to Che-Yen (Brian) Chen?
Columns: ['PMSC No.', 'Year', '1st Prize', '2nd Prize', '3rd Prize']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['13', 2011.0, 'Ayane Kozasa', '/ Elias Goldstein', 'Vicki Powell']
SQL:

assistant: SELECT MIN("Year") FROM "Table" WHERE "1st Prize" = 'Che-Yen (Brian) Chen';