Question: star left at the core of a planetary nebula
[{'answer': 'white dwarf', 'provenance': [{'wikipedia_id': '39674', 'title': 'Planetary nebula', 'start_paragraph_id': 30, 'start_character': 1176, 'end_paragraph_id': 30, 'end_character': 1187, 'bleu_score': 1.0, 'section': 'Section::::Lifetime.\n'}]}, {'provenance': [{'wikipedia_id': '39674', 'title': 'Planetary nebula', 'start_paragraph_id': 30, 'start_character': 0, 'end_paragraph_id': 30, 'end_character': 1394, 'bleu_score': 0.9872065303268641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9564009795568281110}, 'section': 'Section::::Lifetime.\n'}]}]