Question: who killed captain britain while he was in an alternate universe
[{'answer': 'Donald Pierce', 'provenance': [{'wikipedia_id': '412419', 'title': 'Captain Britain', 'start_paragraph_id': 91, 'start_character': 617, 'end_paragraph_id': 91, 'end_character': 630, 'bleu_score': 1.0, 'section': 'Section::::Other versions.:Alternate universe versions.:Age of Apocalypse.\n'}]}, {'provenance': [{'wikipedia_id': '412419', 'title': 'Captain Britain', 'start_paragraph_id': 91, 'start_character': 0, 'end_paragraph_id': 91, 'end_character': 770, 'bleu_score': 0.9850176677359421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1933549924602689737}, 'section': 'Section::::Other versions.:Alternate universe versions.:Age of Apocalypse.\n'}]}]