You will be given a definition of a task first, then some input of the task.
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'.

Sentence 1: A family decided to march in a children's parade. Sentence 2: They made a float out of their little red wagon. Sentence 3: The wagon was decorated like a rocket ship. Sentence 4: The family enjoyed marching in the parade. Sentence 5: They won third prize for best homemade float. Choices: a. The Children's Parade.. b. New Homes.
Output:
a