In this task, you're given four sentences of a story written in natural language. The given story is not complete and your job is to complete the story by selecting one of the sentence choices from (A) and (B), such that the story sounds fully coherent.

Ex Input:
Sentence1: Terry loves to swim but he never learned how to dive. Sentence2: He always jumps in the water feet first. Sentence3: This summer Terry decides he wants to learn how to dive in the water. Sentence4: He practices diving very hard every day.
(A) Terry hope to improve. (B) Terry has given up swimming.

Ex Output:
A

Ex Input:
Sentence1: John had worked hard on his homework but couldn't find it anywhere. Sentence2: Then he came upon some paper scraps on the floor. Sentence3: His dog, Betty, was sitting nearby with a paper scrap in her mouth. Sentence4: John was worried his teacher would think he was lying.
(A) John turned his homework in the next day. (B) John didn't know what to do.

Ex Output:
B

Ex Input:
Sentence1: Ellie was at dancing as hard as she could at a new club. Sentence2: All of a sudden she realized she felt an unusual breeze. Sentence3: The seam of her pants in the back had ripped all the way open. Sentence4: She quickly backed off the dance floor.
(A) Ellie continued to dance. (B) Ellie had to find a new pair of pants quick.

Ex Output:
B