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 man greeted the stranger. Sentence 2: The stranger smiled back. Sentence 3: The man remembered that. Sentence 4: The man saw the stranger again. Sentence 5: He introduced himself as Bob.

greeting