Question: who were the two astronauts who stayed a year on the iss
[{'answer': 'Scott Kelly', 'provenance': [{'wikipedia_id': '46246471', 'title': 'ISS year-long mission', 'start_paragraph_id': 1, 'start_character': 154, 'end_paragraph_id': 1, 'end_character': 165, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Mikhail Korniyenko', 'provenance': [{'wikipedia_id': '46246471', 'title': 'ISS year-long mission', 'start_paragraph_id': 1, 'start_character': 170, 'end_paragraph_id': 1, 'end_character': 188, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '46246471', 'title': 'ISS year-long mission', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 682, 'bleu_score': 0.8792060975086121, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17652717781820747721}, 'section': 'Section::::Abstract.'}]}]