Task: Coherence Classification
Input (English): Sentence 1: Nathan wanted people to donate to his forum. 
 Sentence 3: Nathan researched the options and found one he thought would work 
 Sentence 4:  It would allow people to do their donations anonymously 
 Sentence 5:  He implemented it and a lot of people were able to make donations 
 Option 1: Some people were excited about their publicity. 
 Option 2: Some people were worried about their privacy.
Output (English): Option 2