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: Roy couldn't figure out why his apartment smelled so bad. Sentence2: His friends commented on it when they went over. Sentence3: Everyone decided to look for the source. Sentence4: It turned out to be an old fish in the refrigerator.
(A) Roy decided to leave the fish in the refrigerator. (B) Roy threw out the old fisher and everything smelled better.

Ex Output:
B

Ex Input:
Sentence1: Jeb was building statues out of rocks. Sentence2: He made one that looked like a turtle. Sentence3: Sam came and knocked it down. Sentence4: Jeb started crying.
(A) Sam laughed and ran away. (B) Jeb was excited to build a new one.

Ex Output:
A

Ex Input:
Sentence1: Amy was playing in the back yard with her friends. Sentence2: Suddenly she saw a small snake slither across her arm! Sentence3: She shrieked and ran, but not before the snake bit her hand! Sentence4: Amy was terrified and called an ambulance right away.
(A) The ambulance took her to the morgue to die. (B) The ambulance treated her snake bike.

Ex Output:
B