Question: The Bowland Shale Formation is a Carboniferous geological formation of Asbian (Visean) to Yeadonian (Bashkirian) age, it is an organic-rich shale which, according to which organization, and is the source rock where "oil and gas matured before migration to conventional fields in the East Midlands and the Irish Sea"?
{'answer': 'British Geological Survey', 'supporting_facts': [['Bowland Shale Formation', 2], ['East Midlands Oil Province', 0]]}