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: Mitchell loved to play with chalk. Sentence 2: This resulted in him purchasing a lot of chalk. Sentence 3: One morning he woke up, excited to start playing with chalk. Sentence 4: He searched everywhere and could not find it. Sentence 5: Finally, he was forced to purchase more chalk at the store.

Chalk