Given the task definition and input, reply with output. 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.

Sentence 1: Justin's teacher had given them a genealogy project. Sentence 2: He was very interested in the project. Sentence 3: Justin traced his family tree back several generations. Sentence 4: His teacher was impressed with how thorough his research was. Sentence 5: Justin got an A on his project.
Genealogy