Question: who did theon kill in season 2 episode 7
[{'answer': 'two children', 'provenance': [{'wikipedia_id': '35740692', 'title': 'A Man Without Honor', 'start_paragraph_id': 19, 'start_character': 62, 'end_paragraph_id': 19, 'end_character': 74, 'bleu_score': 1.0, 'section': 'Section::::Plot.:At Winterfell.\n'}]}]