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: The boy learned to count to ten. Sentence 2: His mom challenged him to count higher. Sentence 3: He tried making up his own numbers. Sentence 4: His mom thought that was pretty good. Sentence 5: She gave him a nice sticker as reward.

Counting