Definition: 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'.
Input: Sentence 1: Franklin went to play hockey with his friends at the frozen pond. Sentence 2: He lost his footing and slid into an open portion of the pond. Sentence 3: He fell into the cold icy water. Sentence 4: Franklin started to sink to the bottom. Sentence 5: Then one of his friends grabbed him and pulled him to the surface. Choices: a. Portuguese Man-O-War. b. Pond.

b