Definition: 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.
Input: Sentence1: One night, a group of friends decided to play with a Ouija board. Sentence2: It was all in fun, and they played for an hour. Sentence3: After playing, they laid down for bed. Sentence4: Minutes later, they heard a strange banging sound on the floor. 
 (A) They slept soundly after that. (B) They all freaked out naturally.
Output:
B