user: Question: what is the voltage when release date is June 2001 and frequency is 1.13GHz?
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 "Voltage" FROM "Table" WHERE "Release Date" = 'June 2001' AND "Frequency" = '1.13GHz';