Question: why do they cover the eyes of horses
[{'answer': 'Fly and mosquito protection', 'provenance': [{'wikipedia_id': '9730205', 'title': 'Fly mask', 'start_paragraph_id': 1, 'start_character': 331, 'end_paragraph_id': 1, 'end_character': 358, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '9730205', 'title': 'Fly mask', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 482, 'bleu_score': 0.949466006301181, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12164397341275775336}, 'section': 'Section::::Abstract.'}]}]