As of this writing my parent comment is downvoted, so maybe the difference between the three sentences is less obvious than I thought. While all three sentences

As of this writing my parent comment is downvoted, so maybe the difference between the three sentences is less obvious than I thought. While all three sentences assert that I didn't steal Sally's necklace: • The first version implies that I acquired Sally's necklace via other means. • The second version implies that I stole someone else's necklace. • The last version implies that I stole something else from Sally.