Question: who does creon initially blame for the burial of polyneices
[{'answer': 'Ismene', 'provenance': [{'wikipedia_id': '65953', 'title': 'Antigone (Sophocles play)', 'start_paragraph_id': 4, 'start_character': 513, 'end_paragraph_id': 4, 'end_character': 519, 'bleu_score': 1.0, 'section': 'Section::::Synopsis.\n'}]}, {'provenance': [{'wikipedia_id': '65953', 'title': 'Antigone (Sophocles play)', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 1256, 'bleu_score': 0.92525239524708, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 897045466038271466}, 'section': 'Section::::Synopsis.\n'}]}]