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: Ted had wanted an iguana for a really long time. Sentence 2: He read all the reptile magazines so he could learn about them. Sentence 3: He thought iguanas were very exciting. Sentence 4: But on his way home from school he came across a starving abandoned do. Sentence 5: Ted took the dog home and soon forgot he ever wanted an iguana. Choices: a. Kato's execution. b. A new puppy.

b