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'.

Ex Input:
Sentence 1: Tom had a cabin near a river. Sentence 2: He would visit often. Sentence 3: ONe day the river flooded. Sentence 4: Tom's cabin was swept away. Sentence 5: Tom was sad for years. Choices: a. Burger Competition. b. Lost Cabin.

Ex Output:
b

Ex Input:
Sentence 1: Sally had trained most of her life for this. Sentence 2: She was at the Olympics. Sentence 3: Sally was competing in Judo. Sentence 4: She pinned her opponent on the mat during the match. Sentence 5: Sally won the medal and cried tears of joy. Choices: a. The Umbrella. b. The Judo Match.

Ex Output:
b

Ex Input:
Sentence 1: The robot swept the floor. Sentence 2: The man realized his ring was missing. Sentence 3: He looked inside the robot. Sentence 4: He found his ring. Sentence 5: He got his ring cleaned professionally. Choices: a. Too Short. b. Robot.

Ex Output:
b