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: Iko couldn't wait for it to rain. Sentence 2: The forecast had promised a thunderstorm. Sentence 3: But then a cold snap set in. Sentence 4: It didn't rain, it snowed - heavily! Sentence 5: Iko was disappointed because she disliked snow. Choices: a. The Tall Fall. b. Rain.

b