Question: where is the battle of britain flight based
[{'answer': 'RAF Coningsby in Lincolnshire', 'provenance': [{'wikipedia_id': '2163877', 'title': 'Battle of Britain Memorial Flight', 'start_paragraph_id': 2, 'start_character': 70, 'end_paragraph_id': 2, 'end_character': 99, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2163877', 'title': 'Battle of Britain Memorial Flight', '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': 14645354059742224991}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2163877', 'title': 'Battle of Britain Memorial Flight', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 99, 'bleu_score': 0.8852140475440831, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14645354059742224991}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2163877', 'title': 'Battle of Britain Memorial Flight', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['The flight is administratively part of No. 1 Group RAF, flying out of RAF Coningsby in Lincolnshire.', 'The flight is administratively part of No. 1 Group RAF, flying out of RAF Coningsby in Lincolnshire', 'The flight is administratively part of No. 1 Group RAF, flying out of RAF Coningsby in Lincolnshire.']}}]}]