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 praying mantis waited patiently for it's prey. Sentence 2: The mantis was very still and perfectly camouflaged. Sentence 3: It waited and waited for days and days. Sentence 4: Eventually a fly landed right in front of it. Sentence 5: It lunged and snapped up the fly and slowly ate it up. Choices: a. Mantis. b. message.

Ex Output:
a

Ex Input:
Sentence 1: Zack always walked home from school. Sentence 2: And he carried pepper spray with him. Sentence 3: One day, a pit bull approached him. Sentence 4: And he quickly used his pepper spray. Sentence 5: After the pit bull ran away, Zack was glad he had pepper spray. Choices: a. Pepper Spray. b. Tony Needs to Clean.

Ex Output:
a

Ex Input:
Sentence 1: Tim didn't like country music. Sentence 2: He figured it was easy to play, though. Sentence 3: He made a few country songs and put them online. Sentence 4: They got surprisingly popular. Sentence 5: Tim became a popular country star. Choices: a. Country Song. b. Fred.

Ex Output:
a