Question: who was president when the uss pueblo was captured by north korea
[{'answer': 'Lyndon B. Johnson', 'provenance': [{'wikipedia_id': '415946', 'title': 'USS Pueblo (AGER-2)', 'start_paragraph_id': 2, 'start_character': 135, 'end_paragraph_id': 2, 'end_character': 152, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '415946', 'title': 'USS Pueblo (AGER-2)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 743, 'bleu_score': 0.940665711953596, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2115385591721656896}, 'section': 'Section::::Abstract.'}]}]