Question: how far is the star sirius from earth
[{'answer': '2.6 parsecs', 'provenance': [{'wikipedia_id': '28017', 'title': 'Sirius', 'start_paragraph_id': 2, 'start_character': 114, 'end_paragraph_id': 2, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': '8.6 ly', 'provenance': [{'wikipedia_id': '28017', 'title': 'Sirius', 'start_paragraph_id': 2, 'start_character': 127, 'end_paragraph_id': 2, 'end_character': 133, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28017', 'title': 'Sirius', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 550, 'bleu_score': 0.92450369645807, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11757897025012358925}, 'section': 'Section::::Abstract.'}]}]