Question: who does gandalf fight in the fellowship of the ring
[{'answer': 'the Balrog', 'provenance': [{'wikipedia_id': '64042', 'title': 'Balrog', 'start_paragraph_id': 6, 'start_character': 189, 'end_paragraph_id': 6, 'end_character': 199, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '64042', 'title': 'Balrog', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 362, 'bleu_score': 0.970362113628587, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17834908455258546070}, 'section': 'Section::::History.\n'}]}]