user: ### NOW ANSWER:
Question: Which Date has a Builder of ALCO Schenectady, and a Number larger than 835, and Works number of 56566?
Columns: ['Number', 'Builder', 'Type', 'Date', 'Works number']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [702.0, 'Baldwin Locomotive Works', '4-6-4', 1930.0, 61371.0]
SQL:

assistant: SELECT AVG("Date") FROM "Table" WHERE "Builder" = 'ALCO Schenectady' AND "Number" > 835.0 AND "Works number" = 56566.0;