Question: where do orcs and uruk hai come from
[{'answer': 'Mordor', 'provenance': [{'wikipedia_id': '165066', 'title': 'Uruk-hai', 'start_paragraph_id': 1, 'start_character': 235, 'end_paragraph_id': 1, 'end_character': 241, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Isengard', 'provenance': [{'wikipedia_id': '165066', 'title': 'Uruk-hai', 'start_paragraph_id': 4, 'start_character': 240, 'end_paragraph_id': 4, 'end_character': 248, 'bleu_score': 1.0, 'section': 'Section::::Terminology.\n'}]}, {'answer': 'Moria', 'provenance': [{'wikipedia_id': '165066', 'title': 'Uruk-hai', 'start_paragraph_id': 8, 'start_character': 217, 'end_paragraph_id': 8, 'end_character': 222, 'bleu_score': 1.0, 'section': 'Section::::Literature.\n'}]}, {'provenance': [{'wikipedia_id': '165066', 'title': 'Uruk-hai', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 757, 'bleu_score': 0.9851290761715561, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17452847284427850820}, 'section': 'Section::::Literature.\n'}]}]