Question: what is the code for uk mobile numbers
[{'answer': '07xxx xxxxxx', 'provenance': [{'wikipedia_id': '720356', 'title': 'Telephone numbers in the United Kingdom', 'start_paragraph_id': 46, 'start_character': 12, 'end_paragraph_id': 46, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Format.:Mobile telephones.\n'}]}, {'provenance': [{'wikipedia_id': '720356', 'title': 'Telephone numbers in the United Kingdom', 'start_paragraph_id': 46, 'start_character': 0, 'end_paragraph_id': 46, 'end_character': 55, 'bleu_score': 0.570674577705599, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4021201127518505259}, 'section': 'Section::::Format.:Mobile telephones.\n'}]}]