Question: when does youtube premium launch in the uk
[{'answer': 'May 17 , 2018', 'provenance': [{'wikipedia_id': '44382466', 'title': 'YouTube Premium', 'start_paragraph_id': 12, 'start_character': 3, 'end_paragraph_id': 12, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::History.:As YouTube Premium.\n'}]}, {'provenance': [{'wikipedia_id': '44382466', 'title': 'YouTube Premium', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 928, 'bleu_score': 0.7395376009709801, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7588493647899238961}, 'section': 'Section::::History.:As YouTube Premium.\n'}]}]