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: David likes to go to the beach. Sentence 2: The other day he decided to go there and took some friends with him. Sentence 3: They spent their day at the beach kayaking. Sentence 4: Afterwards they had a picnic lunch on the shore. Sentence 5: At the end of the day they were very tired. Choices: a. Concussion. b. A day at the Beach.

b