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: Calvin was having a party at his house. Sentence 2: He was celebrating his daughter's graduation. Sentence 3: Lots of people came to the party. Sentence 4: Calvin realized he wasn't going to have enough food. Sentence 5: He ordered a few pizzas for his guests.

The Party