Question: which country is known as land of thunder dragon
[{'answer': 'Kingdom of Bhutan', 'provenance': [{'wikipedia_id': '2421391', 'title': 'Bhutan', 'start_paragraph_id': 1, 'start_character': 28, 'end_paragraph_id': 1, 'end_character': 45, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]