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 seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.

Input: Consider Input: Title: Running. Sentence 1: Rick decided that he wanted to start running. Sentence 2: He started off by walking every other day. Sentence 3: Before he got serious he order new running shoes. Sentence 4: Soon he started using a heart rate monitor to improve his training. Choices: a. After that, Amy was able to eat with syrup. b. Within a couple of months Rick ran a race with a bunch of friends.

Output: b

Input: Consider Input: Title: John Makes A Sandwich. Sentence 1: John realizes that he hasn't eaten anything all morning. Sentence 2: He is beginning to feel hungry. Sentence 3: John decides to make himself a sandwich to eat. Sentence 4: He fills the sandwich with meat and vegetables. Choices: a. John is glad that he got something to eat this morning. b. Cathy did so well at the interview, that they hired her on the spot.

Output: a

Input: Consider Input: Title: Cabin. Sentence 1: Barry was cutting a hole in his cabin. Sentence 2: He made a large opening for a window. Sentence 3: He wrapped it in plastic. Sentence 4: He didn't use glass because bears could break it. Choices: a. He looked out the opening satisfied with his work. b. What a relief!
Output: a