Definition: 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'.
Input: Sentence 1: Last week we visited our two year old granddaughter in New York. Sentence 2: We went to the Hall of Science in Queens. Sentence 3: Our granddaughter had a lot of fun chasing the bubbles in one room. Sentence 4: She also loved the Connected Worlds Hall. Sentence 5: We bought her a gift at the shop, thus making her happy as we left. Choices: a. Chicken Sandwich. b. Hall of Science.

b