Question: when was the first bible printed on a printing press
[{'answer': '1450s', 'provenance': [{'wikipedia_id': '286327', 'title': 'Gutenberg Bible', 'start_paragraph_id': 1, 'start_character': 431, 'end_paragraph_id': 1, 'end_character': 436, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '286327', 'title': 'Gutenberg Bible', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 703, 'bleu_score': 0.579260589191535, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 357829069686658412}, 'section': 'Section::::Abstract.'}]}]