Question: how long did the menendez brothers get in prison for killing their parents
[{'answer': 'life', 'provenance': [{'wikipedia_id': '663704', 'title': 'Lyle and Erik Menendez', 'start_paragraph_id': 1, 'start_character': 882, 'end_paragraph_id': 1, 'end_character': 886, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'life imprisonment'}, {'answer': 'life imprisonment without the possibility of parole .'}, {'answer': 'life imprisonment without the possibility of parole'}, {'provenance': [{'wikipedia_id': '663704', 'title': 'Lyle and Erik Menendez', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ["For the second trial, they were tried together by the same jury, which rejected the defense's claim, and as a result, they were sentenced to life in prison without the possibility of parole.", "For the second trial, they were tried together by the same jury, which rejected the defense's claim, and as a result, they were sentenced to life in prison without the possibility of parole."]}}]}]