user: Question: Which ZX Spectrum has a C=64 of C64, and a Title of Ankh?
Columns: ['Title', 'Genre', 'C=64', 'ZX Spectrum', 'Others', 'Year', 'Format']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Goodness Gracious', 'Arcade', 'C64', 'N/A', 'N/A', 1983.0, 'Tape']
SQL:

assistant: SELECT "ZX Spectrum" FROM "Table" WHERE "C=64" = 'C64' AND "Title" = 'Ankh';