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: Riley is feeling hungry one afternoon. Sentence 2: He decides to eat some dumplings. Sentence 3: Riley buys some delicious pork dumplings. Sentence 4: He eats them all. Sentence 5: Riley is happy that he doesn't feel hungry any longer. Choices: a. Riley Eats Dumplings. b. Mature Wood.

a