Task: Coherence Classification
Input (English): Sentence 1: The trial going on needed an expert witness. 
 Sentence 3: The expert witness was 10k but we'll worth it 
 Sentence 4:  The expert was able to help win the case 
 Sentence 5:  Everyone was happy with the work the expert did 
 Option 1: The expert witness was not expensive. 
 Option 2: The expert witness was expensive.
Output (English): Option 2