Question: when did the first automatic gun come out
[{'answer': '1900', 'provenance': [{'wikipedia_id': '390237', 'title': 'Automatic rifle', 'start_paragraph_id': 4, 'start_character': 77, 'end_paragraph_id': 4, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::History.:Cei-Rigotti.\n'}]}, {'provenance': [{'wikipedia_id': '390237', 'title': 'Automatic rifle', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 447, 'bleu_score': 0.8699814953117341, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15994553576051789150}, 'section': 'Section::::History.:Cei-Rigotti.\n'}]}]