Question: how many varieties of british cheeses are there
[{'answer': 'over 700', 'provenance': [{'wikipedia_id': '397578', 'title': 'List of British cheeses', 'start_paragraph_id': 1, 'start_character': 99, 'end_paragraph_id': 1, 'end_character': 107, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '397578', 'title': 'List of British cheeses', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 148, 'bleu_score': 0.9271474438253491, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3315565465444456911}, 'section': 'Section::::Abstract.'}]}]