Question: how many post office branches in the uk
[{'answer': 'around 11,500', 'provenance': [{'wikipedia_id': '516294', 'title': 'Post Office Ltd', 'start_paragraph_id': 12, 'start_character': 20, 'end_paragraph_id': 12, 'end_character': 33, 'bleu_score': 1.0, 'section': 'Section::::Services.\n'}]}, {'provenance': [{'wikipedia_id': '516294', 'title': 'Post Office Ltd', 'start_paragraph_id': 12, 'start_character': 0, 'end_paragraph_id': 12, 'end_character': 360, 'bleu_score': 0.9495615458358401, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17813433399124327704}, 'section': 'Section::::Services.\n'}]}]