Question: what do mobile numbers start with in the uk
[{'answer': '0', 'provenance': [{'wikipedia_id': '720356', 'title': 'Telephone numbers in the United Kingdom', 'start_paragraph_id': 2, 'start_character': 115, 'end_paragraph_id': 2, 'end_character': 116, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '720356', 'title': 'Telephone numbers in the United Kingdom', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18212359901307947130}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '720356', 'title': 'Telephone numbers in the United Kingdom', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 307, 'bleu_score': 0.908198718008664, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18212359901307947130}, 'section': 'Section::::Structure.\n'}]}, {'provenance': [{'wikipedia_id': '720356', 'title': 'Telephone numbers in the United Kingdom', 'section': 'Section::::Format.:Geographic numbering.:Standard geographic numbers.:Five-digit area codes.\n', 'start_paragraph_id': 38, 'end_paragraph_id': 38, 'meta': {'evidence_span': ['These ranges have subscriber numbers beginning with the digits "0" or "1", e.g.: Currently,', 'These ranges have subscriber numbers beginning with the digits "0" or "1", e.g.: Currently, these numbers are mostly used as the termination points for non-geographic numbers, and by some automated systems such as alarms.', 'The above twelve area codes and their six \'parent\' area codes (01387, 01524, 01539, 01697, 01768 and 01946) are known as \'Mixed\' areas due to multiple area codes sharing the same SABC digits (i.e. the initial zero and the following four digits). These ranges have subscriber numbers beginning with the digits "0" or "1", e.g.: Currently, these numbers are mostly used as the termination points for non-geographic numbers, and by some automated systems such as alarms.']}}]}, {'provenance': [{'wikipedia_id': '2486825', 'title': 'Telephone numbers in the Republic of Ireland', 'section': 'Section::::Historical numbering (no longer in use).:Historical codes to access numbers in Great Britain.\n', 'start_paragraph_id': 224, 'end_paragraph_id': 224, 'meta': {'evidence_span': ['Until the early 1990s, the 03 numbering range was originally used for calls to Great Britain, including the Channel Islands and the Isle of Man, with the Irish prefix 030 replacing the UK trunk code 0', 'Until the early 1990s, the 03 numbering range was originally used for calls to Great Britain, including the Channel Islands and the Isle of Man, with the Irish prefix 030 replacing the UK trunk code 0. Calls to British cities using the Director telephone system were also possible using shorter codes: When London was split into two area codes, 071 and 081 in 1990, 031 was replaced with the codes 03071 and 03081 respectively. Use of the 03 range for this purpose was discontinued in 1993, when the international access code changed from 16 to 00, with calls to Great Britain (but not Northern Ireland']}}]}, {'provenance': [{'wikipedia_id': '720356', 'title': 'Telephone numbers in the United Kingdom', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ["The numbers are of variable length. Local numbers are supported from land-lines, or numbers can be dialled with a '0", "The numbers are of variable length. Local numbers are supported from land-lines, or numbers can be dialled with a '0'-lead prefix that denotes either a geographical region or another service.", "The numbers are of variable length. Local numbers are supported from land-lines, or numbers can be dialled with a '0'-lead prefix that denotes either a geographical region or another service. Cell phone numbers have their own prefixes which are not geographical and are completely portable between providers."]}}]}]