Question: Which Windows system has Windows Mobile of Unknown, and a Mac OS X of Yes, and another Unix of Yes, and an AmigaOS of Partial?
SQL: SELECT "Windows" FROM "2-1504233-2" WHERE "Windows Mobile" = 'Unknown' AND "Mac OS X" = 'Yes' AND "Other Unix" = 'Yes' AND "AmigaOS" = 'Partial';

Question: Which Android has anOther Unix of Unknown?
SQL: SELECT "Android" FROM "2-1504233-2" WHERE "Other Unix" = 'Unknown';

Question: Which Mac OS X has an AmigaOS of Partial?
SQL: SELECT "Mac OS X" FROM "2-1504233-2" WHERE "AmigaOS" = 'Partial';

Question: Which Mac OS X has a Linux of No, and an AmigaOS of No, and an Android of Unknown?
SQL: SELECT "Mac OS X" FROM "2-1504233-2" WHERE "Linux" = 'No' AND "AmigaOS" = 'No' AND "Android" = 'Unknown';

Question: Which AmigaOS has a Windows Mobile of No, and an Android of No?
SQL: SELECT "AmigaOS" FROM "2-1504233-2" WHERE "Windows Mobile" = 'No' AND "Android" = 'No';