user: Question: What is the 1st ship delivery date of 6 ways?
Columns: ['Yard Name', 'Location (city, state)', '1st Ship Delivery Date', 'Total Number of Ways', 'total vessels built']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Moore Dry Dock Company', 'Oakland, California', 'July 1940', '4 ways', '__ ships for USMC (remainder for USN)']
SQL:

assistant: SELECT "1st Ship Delivery Date" FROM "Table" WHERE "Total Number of Ways" = '6 ways';