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: Ben took the swap out of his mouth. Sentence 2: He put it in an envelope and mailed it. Sentence 3: He received a letter back a week later. Sentence 4: It told him his ethnicity. Sentence 5: He was 20% european, 70% african, and 10% asian.

DNA