user: Question: Which Image attachment has a Threaded of Yes, and a Calendar of Yes?
Columns: ['Flat', 'Threaded', 'User-selectable themes', 'Calendar', 'Image attachment', 'Unread message tracking', 'WYSIWYG Editor']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Yes', 'Yes', 'Yes', 'No', 'Yes', 'Full', 'Yes (using TinyMCE )']
SQL:

assistant: SELECT "Image attachment" FROM "Table" WHERE "Threaded" = 'Yes' AND "Calendar" = 'Yes';