Question: when was the book of exodus in the bible written
[{'answer': '600 BCE', 'provenance': [{'wikipedia_id': '9662', 'title': 'Book of Exodus', 'start_paragraph_id': 15, 'start_character': 376, 'end_paragraph_id': 15, 'end_character': 383, 'bleu_score': 1.0, 'section': 'Section::::Composition.:Authorship.\n'}]}, {'provenance': [{'wikipedia_id': '9662', 'title': 'Book of Exodus', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 562, 'bleu_score': 0.948891840545617, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10084696944596332778}, 'section': 'Section::::Composition.:Authorship.\n'}]}]