Instructions: 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 end sentence choices from (A) and (B), such that the story does not sound complete and coherent, i.e., select an incorrect end sentence.
Input: Sentence1: Ben walked along the street and found the end of a length of string. Sentence2: He picked it up and pulled on it. Sentence3: More string came but not the end. Sentence4: Ben followed the string to see where it went. 
 (A) Ben was fascinated by the string. (B) Ben went for a run.
Output:
B