Question: who is lin's father in legend of korra
[{'answer': 'Kanto', 'provenance': [{'wikipedia_id': '45648307', 'title': 'Lin Beifong', 'start_paragraph_id': 16, 'start_character': 897, 'end_paragraph_id': 16, 'end_character': 902, 'bleu_score': 1.0, 'section': 'Section::::Appearances.:"The Legend of Korra".:"Book Four: Balance".\n'}]}, {'provenance': [{'wikipedia_id': '45648307', 'title': 'Lin Beifong', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 2538, 'bleu_score': 0.9873316285883571, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11763925263611368921}, 'section': 'Section::::Appearances.:"The Legend of Korra".:"Book Four: Balance".\n'}]}]