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: Anna loved weekends. Sentence 2: She got to spend them with her dad. Sentence 3: He picked her up Friday night and they had fun until Sunday night. Sentence 4: They often went swimming or even to the movies. Sentence 5: Weekends were Anna's favorite part of the week! Choices: a. Dad. b. Mouse.

a