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'.

Ex Input:
Sentence 1: The man turned up the air conditioning. Sentence 2: He fell asleep. Sentence 3: He woke up when his wife came home. Sentence 4: It was way too cold in the house. Sentence 5: The woman got angry at the man for wasting energy. Choices: a. Stuff To Pack. b. Air Conditioning.

Ex Output:
b

Ex Input:
Sentence 1: John got call from his credit card company. Sentence 2: They needed to check if he travelled to Canada. Sentence 3: He confirmed he was at home in Kentucky. Sentence 4: The company told him his identity was probably stolen. Sentence 5: John had to call the police. Choices: a. Birdo. b. A stolen identity.

Ex Output:
b

Ex Input:
Sentence 1: Jack was having his picture day on school Monday. Sentence 2: Jack wasn't feeling well that day. Sentence 3: He didn't go to school. Sentence 4: He wasn't able to take his picture. Sentence 5: Jack didn't appear in that year's yearbook. Choices: a. Yearbook Picture. b. Spaceteam.

Ex Output:
a