In this task, you're given the title of a five-sentence story, the first four sentences, and two options for the fifth sentence as a and b. Your job is to pick the sentence option that does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.

Input: Consider Input: Title: The Flu Shot. Sentence 1: The woman didn't want to catch the flu. Sentence 2: She got a flu shot from her doctor. Sentence 3: She hoped it would keep her healthy all winter. Sentence 4: In January, her body started aching. Choices: a. She had caught the flu anyway! b. Then Charles realized he'd forgotten his gun!

Output: b

Input: Consider Input: Title: Lost Ball. Sentence 1: Tom was playing kickball with friends. Sentence 2: He accidentally kicked over the wrong fence. Sentence 3: It went into a neighbor's yard. Sentence 4: Tom was forced to get it by his friends. Choices: a. Tommy was given another meal for free and a very sincere apology. b. The neighbor was annoyed.

Output: a

Input: Consider Input: Title: AA meeting. Sentence 1: Alan stopped going to his AA meetings all of a sudden. Sentence 2: He decided he was better and didn't need help anymore. Sentence 3: As he was among people who didn't drink it helped for a bit. Sentence 4: But he realized as time went by that he missed the company. Choices: a. That is when he heard the baby yell, "daddy!" b. So he went back to help others as he was feeling stronger himself.
Output: a