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: Charles is about to turn 23. Sentence 2: He decides he would like to celebrate. Sentence 3: Charles invites some friends over for a small party. Sentence 4: They eat cake and play board games. Sentence 5: Charles is glad he celebrated his 23rd birthday.

Charles Celebrates His Birthday