Question: who are cain and abel in the bible
[{'answer': 'sons of Adam and Eve', 'provenance': [{'wikipedia_id': '192648', 'title': 'Cain and Abel', 'start_paragraph_id': 1, 'start_character': 65, 'end_paragraph_id': 1, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '192648', 'title': 'Cain and Abel', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 481, 'bleu_score': 0.766907454246699, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11367021909697150131}, 'section': 'Section::::Abstract.'}]}]