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: Consider Input: Sentence1: I walked inside of the dentists office. Sentence2: After signing the attendance board, the dentist greeted me. Sentence3: He showed me where to sit. Sentence4: Afterwards, he started to operate on my teeth.
(A) I left the dentist's office with a signed petition. (B) I was nervous but he reassured me that everything was fine.

Output: B

Input: Consider Input: Sentence1: Don's first day at the dock's had some hiccups. Sentence2: He was nervous being around heavy machinery. Sentence3: At one point he dropped a heavy shipment. Sentence4: It almost hit a fellow coworker.
(A) Don was glad he wasn't nervous at work. (B) Don knew he would have to improve.

Output: B

Input: Consider Input: Sentence1: I was feeling ill. Sentence2: I scheduled a doctor's appointment. Sentence3: I went to see the doctor. Sentence4: He ran some tests.
(A) I found out I had the flu. (B) I told the doctor I didn't need his services.
Output: A