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: Tony's office held a weight loss competition. Sentence 2: Whatever department loses the most gets an extra week of vacation. Sentence 3: Tony wanted to go to Hawaii so he stopped eating completely. Sentence 4: He lost fifteen pounds in the first two weeks. Sentence 5: It was too bad Becky gained fifteen from getting pregnant. Choices: a. Summer Homework. b. Weightless.

b