Instructions: In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).
Input: Context: Yorkshire (or ; abbreviated Yorks), formally known as the County of York, is a historic county of Northern England and the largest in the United Kingdom. Due to its great size in comparison to other English counties, functions have been undertaken over time by its subdivisions, which have also been subject to periodic reform. Throughout these changes, Yorkshire has continued to be recognised as a geographical territory and cultural region. The name is familiar and well understood across the United Kingdom and is in common use in the media and the military, and also features in the titles of current areas of civil administration such as North Yorkshire, South Yorkshire, West Yorkshire and East Riding of Yorkshire., The West Riding of Yorkshire is one of the three historic subdivisions of Yorkshire, England. From 1889 to 1974 the administrative county, County of York, West Riding (abbreviated: "County of York (W.R.)") (the area under the control of West Riding County Council), was based closely on the historic boundaries. The lieutenancy at that time included the City of York and as such was named West Riding of the County of York and the County of the City of York., Doncaster (or ), is a large market town in South Yorkshire, England. Together with its surrounding suburbs and settlements, the town forms part of the Metropolitan Borough of Doncaster, which had a population of . The town itself has a population of 109,805. Historically part of the West Riding of Yorkshire, Doncaster is about from Sheffield, with which it is served jointly by an international airport, Robin Hood Airport Doncaster Sheffield in Finningley. The Doncaster Urban Area had a population of 158,141 in 2011 and includes Doncaster and the neighbouring small town of Bentley as well as some other villages., Finningley is a village and civil parish within the Metropolitan Borough of Doncaster, in South Yorkshire, England. Historically part of Nottinghamshire, Finningley lies along the A614 road, about six miles from the centre of Doncaster, at , and at an elevation of around 23 feet above sea level. According to the 2001 census it had a population of 1,442, increasing slightly to 1,497 at the 2011 Census. The parish church of Holy Trinity is Norman, with a 13th century chancel. , Market town or market right is a legal term, originating in the Middle Ages, for a European settlement that has the right to host markets, distinguishing it from a village and city. A town may be correctly described as a "market town" or as having "market rights", even if it no longer holds a market, provided the legal right to do so still exists., Nottinghamshire (pronounced or /ntmr/; abbreviated Notts) is a county in the East Midlands of England, bordering South Yorkshire to the north-west, Lincolnshire to the east, Leicestershire to the south, and Derbyshire to the west. The traditional county town is Nottingham, though the county council is based in West Bridgford in the borough of Rushcliffe, at a site facing Nottingham over the River Trent., South Yorkshire is a metropolitan county in England. It is the southernmost county in the Yorkshire and the Humber region and had a population of 1.34 million in 2011. It has an area of and consists of four metropolitan boroughs, Barnsley, Doncaster, Rotherham and Sheffield. South Yorkshire was created on 1 April 1974 as a result of the Local Government Act 1972 with Barnsley as its county town., Sheffield is a city and metropolitan borough in South Yorkshire, England. Historically part of the West Riding of Yorkshire, its name derives from the River Sheaf, which runs through the city. With some of its southern suburbs annexed from Derbyshire, the city has grown from its largely industrial roots to encompass a wider economic base. The population of the City of Sheffield is and it is one of the eight largest regional English cities that make up the Core Cities Group. Sheffield is the third largest English district by population. The metropolitan population of Sheffield is 1,569,000., The site of the former RAF Misson , Nottinghamshire , is located 7.5 miles ( 12.1 km ) miles south east of Doncaster , South Yorkshire , and approximately 1 - mile ( 1.6 km ) southeast of the former RAF Finningley airfield ., York is a historic walled city at the confluence of the rivers Ouse and Foss in North Yorkshire, England. The municipality is the traditional county town of Yorkshire to which it gives its name. The city has a rich heritage and has provided the backdrop to major political events in England throughout much of its two millennia of existence. The city offers a wealth of historic attractions, of which York Minster is the most prominent, and a variety of cultural and sporting activities making it a popular tourist destination for millions., The Royal Air Force (RAF) is the United Kingdom's aerial warfare force. Formed towards the end of the First World War on 1 April 1918, it is the oldest independent air force in the world. Following victory over the Central Powers in 1918 the RAF emerged as, at the time, the largest air force in the world. Since its formation, the RAF has taken a significant role in British military history, in particular, playing a large part in the Second World War where it fought its most famous campaign, the Battle of Britain., England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west. The Irish Sea lies northwest of England and the Celtic Sea lies to the southwest. England is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain (which lies in the North Atlantic) in its centre and south; and includes over 100 smaller islands such as the Isles of Scilly, and the Isle of Wight., The Metropolitan Borough of Doncaster is a metropolitan borough of South Yorkshire in Yorkshire and the Humber Region of England., Royal Air Force Finningley or RAF Finningley is a former Royal Air Force station at Finningley, South Yorkshire, England, partly within the traditional county boundaries of Nottinghamshire and partly in the West Riding of Yorkshire, now wholly within the Metropolitan Borough of Doncaster., Subject: raf misson, Relation: instance_of, Options: (A) 1 (B) 1918 (C) air force (D) area (E) borough (F) campaign (G) census (H) city (I) comparison (J) county (K) cultural region (L) destination (M) eight (N) elevation (O) england (P) force (Q) formation (R) four (S) geographical (T) history (U) international airport (V) island (W) legal term (X) market (Y) market right (Z) metropolitan ([) metropolitan borough (\) metropolitan county (]) name (^) parish (_) part (`) population (a) region (b) region of england (c) result (d) riding (e) road (f) role (g) royal air force station (h) settlement (i) the city (j) three (k) town (l) two (m) variety (n) village (o) war
Output:
royal air force station