user: Question: Which Android has anOther Unix of Unknown?
Columns: ['Windows', 'Mac OS X', 'Linux', 'Other Unix', 'AmigaOS', 'Android', 'Windows Mobile']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Yes [1 ]', 'Yes [2 ]', 'Yes [2 ]', 'Command-line interface [2 ]', 'Command-line interface [4 ]', 'No', 'Yes']
SQL:

assistant: SELECT "Android" FROM "Table" WHERE "Other Unix" = 'Unknown';