Question: what is the brightest star in the solar system
[{'answer': 'Sirius', 'provenance': [{'wikipedia_id': '28161', 'title': 'List of brightest stars', 'start_paragraph_id': 3, 'start_character': 240, 'end_paragraph_id': 3, 'end_character': 246, 'bleu_score': 1.0, 'section': 'Section::::Measurement.\n'}]}]