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: The bird caught a worm. Sentence 2: It took the worm to its nest. Sentence 3: It fed the worm to a baby bird. Sentence 4: The baby bird was still hungry. Sentence 5: The bird caught another worm. Choices: a. Bird. b. Extra Napkins.

a