user: ### NOW ANSWER:
Question: What is the number for Chauchilla Cemetery Battle with less than 511 pieces?
Columns: ['Name', 'Number', 'Released', 'Film', 'Pieces']
Types: ['text', 'real', 'real', 'text', 'real']
Sample row: ['Motorcycle Chase', 7620.0, 2008.0, 'Indiana Jones and the Last Crusade', 79.0]
SQL:

assistant: SELECT AVG("Number") FROM "Table" WHERE "Pieces" < 511.0 AND "Name" = 'Chauchilla Cemetery Battle';