Question: what is the latest version of linux ubuntu
[{'answer': '18.10', 'provenance': [{'wikipedia_id': '990298', 'title': 'Ubuntu', 'start_paragraph_id': 12, 'start_character': 115, 'end_paragraph_id': 12, 'end_character': 120, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}]