Question: how many mot testers are there in the uk
[{'answer': 'about 53,000', 'provenance': [{'wikipedia_id': '1244583', 'title': 'MOT test', 'start_paragraph_id': 3, 'start_character': 74, 'end_paragraph_id': 3, 'end_character': 86, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1244583', 'title': 'MOT test', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 458, 'bleu_score': 0.9738505480425671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3583264179474342676}, 'section': 'Section::::Abstract.'}]}]