Question: what happened to brandon stark's younger brother
[{'answer': 'fled', 'provenance': [{'wikipedia_id': '1186150', 'title': 'Rickon Stark', 'start_paragraph_id': 14, 'start_character': 187, 'end_paragraph_id': 14, 'end_character': 191, 'bleu_score': 1.0, 'section': 'Section::::Storylines.:"A Dance with Dragons".\n'}]}, {'provenance': [{'wikipedia_id': '1186150', 'title': 'Rickon Stark', 'start_paragraph_id': 14, 'start_character': 70, 'end_paragraph_id': 14, 'end_character': 646, 'bleu_score': 0.762460765818545, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6597161298282074559}, 'section': 'Section::::Storylines.:"A Dance with Dragons".\n'}]}]