Question: who was the leader of the visigoths that invaded the roman empire
[{'answer': 'King Alaric', 'provenance': [{'wikipedia_id': '3162376', 'title': 'Sack of Rome (410)', 'start_paragraph_id': 1, 'start_character': 93, 'end_paragraph_id': 1, 'end_character': 104, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3162376', 'title': 'Sack of Rome (410)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 476, 'bleu_score': 0.9328149465872141, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12974410699774982587}, 'section': 'Section::::Abstract.'}]}]