Task: Question Answering
Input (English): Each annotator annotated 90 reference sentences (i.e. from the training corpus) with which style they thought the sentence was from. The accuracy on this baseline task for annotators A1, A2, and A3 was 80%, 88%, and 80% respectively, giving us an upper expected bound on the human evaluation. 
 Question: How they perform manual evaluation, what is criteria?
Output (English): accuracy