Question: what happened to the last king of gondor
[{'answer': 'disappeared', 'provenance': [{'wikipedia_id': '307620', 'title': 'List of kings of Gondor', 'start_paragraph_id': 6, 'start_character': 109, 'end_paragraph_id': 6, 'end_character': 120, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]