Definition: In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.
Input: Sentence 1: Rachel had a beautiful ivory necklace. Sentence 2: It was very valuable so she kept it locked at all times. Sentence 3: Except one day, she took it out to show to a friend. Sentence 4: And as she forgot to put it back, she misplaced it. Sentence 5: After many years, Rachel has never found her necklace again.

Lost necklace