Task: Coherence Classification
Input (English): Sentence1: John had a huge client presentation tomorrow, but he felt unprepared. Sentence2: It's not that he was nervous presenting. Sentence3: John had always felt comfortable in front of crowds. Sentence4: This content, however, lacked polish and needed refinement. 
 Sentence5: John reworked the presentation, and it was a great success.
Output (English): Yes