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: Our treehouse was on the ground. Sentence 2: We were afraid of heights so we found a tree with a big hole. Sentence 3: We climbed inside and sat there to talk for hours. Sentence 4: We played with the little bugs in the dirt. Sentence 5: We met there every day for years. Choices: a. Treehouse. b. New Chickens.

Ex Output:
a

Ex Input:
Sentence 1: My husband and i went for a walk in town. Sentence 2: We stopped by the chocolate shop. Sentence 3: He picked out a box of truffles for us. Sentence 4: We got home and he wanted to try them. Sentence 5: We tried three, but then we did not. Choices: a. Ruined Trick. b. Chocolate.

Ex Output:
b

Ex Input:
Sentence 1: When Laura went to work she wasn't feeling good. Sentence 2: She didn't have any other options but to go to work so she went. Sentence 3: When she got there she told her boss that she wasn't feeling well. Sentence 4: Her boss told her that if she still felt sick later that she could go. Sentence 5: In a few hours Laura ended up going home. Choices: a. Hooks. b. Sickness.

Ex Output:
b