Question: who wrote the book of hebrews who was the author of hebrews
[{'answer': 'unknown', 'provenance': [{'wikipedia_id': '24187075', 'title': 'Authorship of the Epistle to the Hebrews', 'start_paragraph_id': 1, 'start_character': 303, 'end_paragraph_id': 1, 'end_character': 310, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '24187075', 'title': 'Authorship of the Epistle to the Hebrews', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 310, 'bleu_score': 0.96188712955549, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12484059425680854436}, 'section': 'Section::::Abstract.'}]}]