Question: what are the first names of harry potter's two best friends
[{'answer': 'Ron', 'provenance': [{'wikipedia_id': '667601', 'title': 'List of Harry Potter characters', 'start_paragraph_id': 15, 'start_character': 104, 'end_paragraph_id': 15, 'end_character': 107, 'bleu_score': 1.0, 'section': 'Section::::Characters by surname.:B.\n'}]}, {'answer': 'Hermione', 'provenance': [{'wikipedia_id': '667601', 'title': 'List of Harry Potter characters', 'start_paragraph_id': 70, 'start_character': 12, 'end_paragraph_id': 70, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Characters by surname.:G.\n'}]}, {'provenance': [{'wikipedia_id': '667601', 'title': 'List of Harry Potter characters', 'start_paragraph_id': 177, 'start_character': 0, 'end_paragraph_id': 177, 'end_character': 195, 'bleu_score': 0.929712191543383, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16191375790916948983}, 'section': 'Section::::Characters by surname.:W.\n'}]}]