Question: who wrote the occurrence at owl creek bridge
[{'answer': 'Ambrose Bierce', 'provenance': [{'wikipedia_id': '2407928', 'title': 'An Occurrence at Owl Creek Bridge', 'start_paragraph_id': 1, 'start_character': 105, 'end_paragraph_id': 1, 'end_character': 119, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2407928', 'title': 'An Occurrence at Owl Creek Bridge', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 433, 'bleu_score': 0.6139788753871841, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3790657925865193276}, 'section': 'Section::::Abstract.'}]}]