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: Foster lived in a large home by the sea. Sentence 2: Despite not being able to swim, he longed to explore the waves. Sentence 3: Foster hired a swimming instructor to teach him how to swim. Sentence 4: After a year of training, he finally took to the water. Sentence 5: Foster swam all day before leaving the waters. Choices: a. Foster by the Sea. b. Leaking Roof.

a