context: Yesterday I woke up and decided to wear my favorite cardigan sweater to work.  After taking a shower and eaten breakfast I started getting dressed.  I put on a pair of jeans and then I reached for my favorite black cardigan.  As I began to button it up I realized that one of the buttons had fallen off.  Of course I did not want to wear any other sweater, just this one as it was my favorite.  I went to my spare room and dug my sewing kit out of the dresser.  I found a thread and button that would match and I quickly threaded a needle.  I began to methodically move the needle through the holes in the button to sew it back onto the sweater.  After a few minutes I cut the thread and secured the button to the sweater.  Finally I was able to put my sweater on and head off to work.
question: How does the button stay on?
reference: sewn on
candidate: The button stays on.