Question: where does samwell tarly go to become a maester
[{'answer': 'Oldtown', 'provenance': [{'wikipedia_id': '1325369', 'title': 'Samwell Tarly', 'start_paragraph_id': 21, 'start_character': 17, 'end_paragraph_id': 21, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Storylines.:In the books.:"A Feast for Crows".\n'}]}, {'provenance': [{'wikipedia_id': '1325369', 'title': 'Samwell Tarly', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 1056, 'bleu_score': 0.9891594913313011, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2369487162069318391}, 'section': 'Section::::Storylines.:In the books.:"A Feast for Crows".\n'}]}]