Question: when did egypt began to develop into a kingdom
[{'answer': '3100 BC', 'provenance': [{'wikipedia_id': '874', 'title': 'Ancient Egypt', 'start_paragraph_id': 1, 'start_character': 235, 'end_paragraph_id': 1, 'end_character': 242, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '874', 'title': 'Ancient Egypt', 'start_paragraph_id': 13, 'start_character': 0, 'end_paragraph_id': 13, 'end_character': 439, 'bleu_score': 0.848090782472329, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7813621287297495874}, 'section': 'Section::::History.:Early Dynastic Period (c. 3050–2686 BC).\n'}]}]