Question: when did the bronze age end in europe
[{'answer': '600 BC', 'provenance': [{'wikipedia_id': '4620', 'title': 'Bronze Age', 'start_paragraph_id': 31, 'start_character': 198, 'end_paragraph_id': 31, 'end_character': 204, 'bleu_score': 1.0, 'section': 'Section::::History.:Near East.:Levant.\n'}]}]