Question: Which unitary authority area in Yorkshire houses the RAF North Killingholme just west of it?

full_context: Document 1: Killingholme A power station: Killingholme A Power Station is a Combined‐cycle gas turbine natural gas power station in the civil parish of North Killingholme in North Lincolnshire, north of the Lindsey Oil Refinery, and adjacent to Killingholme B power station
Document 2: Ulceby Aerodrome Platform railway station: Ulceby Aerodrome Platform railway station was situated 74 chain north east of Ulceby North Junction between Ulceby and the village of South Killingholme, Lincolnshire, England. It was opened by LNER to serve the Second World War airfield RAF North Killingholme, whose southern perimeter lay a short distance to the north.
Document 3: Killingholme B power station: Killingholme B Power Station is a Combined‐cycle gas turbine natural gas power station in the civil parish of North Killingholme in North Lincolnshire, north of the Lindsey Oil Refinery, and adjacent to Killingholme A power station
Document 4: North East Lincolnshire: North East Lincolnshire is a unitary authority area in the Yorkshire and the Humber region of England, bordering the unitary authority of North Lincolnshire and the non-metropolitan county of Lincolnshire. The population of the Unitary Authority at the 2011 Census was 159,616. These three administrative units make up the ceremonial county of Lincolnshire.
Document 5: Yorkshire and the Humber: Yorkshire and the Humber is one of nine official regions of England at the first level of NUTS for statistical purposes. It comprises most of Yorkshire (South Yorkshire, West Yorkshire, the East Riding of Yorkshire including Hull, the shire county of North Yorkshire and the City of York), North Lincolnshire and North East Lincolnshire. It does not include Middlesbrough or Redcar and Cleveland (which are in the ceremonial county of North Yorkshire but not in the shire county). The population in 2011 was 5,284,000.
Document 6: South Killingholme: South Killingholme is a village and civil parish in North Lincolnshire, England. The population of the civil parish at the 2011 census was 1,108.
Document 7: North Scarle: North Scarle is a village and civil parish in the North Kesteven district of Lincolnshire, England. The population of the civil parish at the 2011 census was 640. The village is situated on the River Trent, about 8 mi south-west from the city and county town of Lincoln, and on the county boundary with Nottinghamshire.
Document 8: RAF North Killingholme: Royal Air Force North Killingholme or more simply RAF North Killingholme is a former Royal Air Force station located immediately west of the village of North Killingholme in North Lincolnshire.
Document 9: Brigg: Brigg () is a small market town in North Lincolnshire, England, with a population of 5,076 in 2,213 households (2001 UK census), the population increasing to 5,626 at the 2011 census. The town lies at the junction of the River Ancholme and east–west transport routes across northern Lincolnshire. As a formerly important local centre, the town's full name of Glanford Brigg is reflected in the surrounding area and local government district of the same name. The town's urban area includes the neighbouring hamlet of Scawby Brook.
Document 10: Scunthorpe railway station: Scunthorpe railway station serves the town of Scunthorpe in North Lincolnshire, England. The station is located a short walk from the town centre, on Station Road.
Document 11: RAF Skellingthorpe: Royal Air Force Skellingthorpe or more simply RAF Skellingthorpe is a former Royal Air Force station which was operational during the Second World War. It was located in the city of Lincoln, England. It was known as "Skelly" by the RAF personnel serving there.
Document 12: RAF East Kirkby: Royal Air Force East Kirkby or more simply RAF East Kirkby is a former Royal Air Force station near the village of East Kirkby, south of Horncastle in Lincolnshire, just off the A155. The Greenwich meridian passes through the base.
Document 13: North Lincolnshire: North Lincolnshire is a unitary authority area in the region of Yorkshire and the Humber in England. The population of the Unitary Authority at the 2011 census was 167,446. For ceremonial purposes it is part of Lincolnshire. There are three significant towns: Scunthorpe (the administrative centre), Brigg and Barton-upon-Humber.
Document 14: North East Lincolnshire Council: North East Lincolnshire Council is the local authority of North East Lincolnshire. It is a unitary authority, having the powers of a non-metropolitan county and district council combined. It provides a full range of local government services including Council Tax billing, libraries, social services, processing planning applications, waste collection and disposal, and it is a local education authority.
Document 15: Barton-upon-Humber: Barton-upon-Humber or Barton is a town and civil parish in North Lincolnshire, England. The population at the 2011 census was 11,066. It is situated on the south bank of the Humber Estuary at the southern end of the Humber Bridge. It is 46 mi east of Leeds, 6 mi south-west of Hull and 31 mi north north-east of the county town of Lincoln. Other nearby towns include Scunthorpe to the south-west and Grimsby to the south-east.
ground_truth: North Lincolnshire