In this task, you're given five sentences, numbered 1 through 5, and two options a and b for possible titles for the story. Your job is to choose the title that better fits the story. Indicate your choice by 'a' or 'b'.

Example Input: Sentence 1: Jake loved collecting stamps. Sentence 2: He had several books full of them. Sentence 3: His collection wasn't worth much. Sentence 4: To him, though, it was invaluable. Sentence 5: Jake kept it his entire life. Choices: a. Zap. b. Stamp Collection.
Example Output: b

Example Input: Sentence 1: Tom's girlfriend had dogs. Sentence 2: She asked him to pick them up some food. Sentence 3: Unfortunately Tom didn't know much about it. Sentence 4: He got the wrong kind of food. Sentence 5: His girlfriend had to pick out the right kind. Choices: a. Organizer for Hire. b. Dog Food.
Example Output: b

Example Input: Sentence 1: Brad never like the outdoors. Sentence 2: But his friends made him come along on a trip. Sentence 3: When they got to the campground they set up the tent. Sentence 4: Brad was really having a good time in the outdoors. Sentence 5: Brad enjoys the rest of the trip and now loves the outdoors. Choices: a. Brad goes camping. b. Ben gets candy.
Example Output:
a