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Question: What is the Release Date when sSpec Number is SL5XL, SL657, SL6BY, SL6JP?
Columns: ['Model Number', 'sSpec Number', 'Frequency', 'L2 Cache', 'Mult', 'Voltage', 'Socket', 'Release Date', 'Part Number(s)']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Pentium III 1000', 'SL5GR', '1GHz', '256 KB', '7.5×', '1.475 V', 'Socket 370', 'July 2001', 'RK80530PZ001256']
SQL:

assistant: SELECT "Release Date" FROM "Table" WHERE "sSpec Number" = 'SL5XL, SL657, SL6BY, SL6JP';