Given the task definition and input, reply with output. 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).

Context: Luton is a large town, borough and unitary authority area of Bedfordshire, England. Luton and its near neighbours, Dunstable and Houghton Regis, form the Luton/Dunstable Urban Area with a population of about 258,000. It is located east of Aylesbury, west of Stevenage, north-northwest of London, and southeast of Milton Keynes., Bedford is the county town of Bedfordshire, England. It had a population of 107,590 in 2011 together with Kempston but the urban area has a population of about 122,943., Houghton House is a ruined house located near Houghton Conquest in Bedfordshire , on the ridge just north of Ampthill , and about 8 miles south of Bedford . It is a Grade I listed building . Being set above the surrounding countryside , it commands excellent views , and can be visited during daylight hours . It is an English Heritage property which is free to visit . The house was built in approximately 1615 for the writer , translator , and literary patron Mary Sidney Herbert , Dowager Countess of Pembroke ( born 27 October 1561 ) , but she died of smallpox on 25 September 1621 , not long after its completion . A Jacobean style frieze on the western side of the house incorporated devices from Mary 's ancestral Sidney and Dudley families . After the Countess ' death , the house passed to Thomas Bruce , 1st Earl of Elgin , in 1624 . The Bruce family owned the house until the 2nd Earl of Ailesbury , a strong supporter of the Stuarts , retired to exile overseas in 1696 on account of his loyalty to King James II of England . Thomas Bruce , 2nd Earl of Ailesbury , never returned to Houghton and so sold the house to John Russell , 4th Duke of Bedford , in 1738 , whose principal seat was Woburn Abbey , less than seven miles from Houghton . The 4th Duke was predeceased by his sons ( the 4th Duke 's son and heir , Francis Russell , Marquess of Tavistock , died when he fell from a horse whilst hunting ) and therefore the house and the dukedom passed to his grandson , Francis Russell . In 1794 , Francis Russell , 5th Duke of Bedford , stripped Houghton House of its furnishings and removed the roof . This may have been due , in part , to his father 's horseriding tragedy . The Duke never married nor had he produced a legitimate heir . He died in 1802 by which time the house , now open to the elements , was already in decay . Conservation work was undertaken in 2006 to help maintain safety and improve the understanding of the site . New visitor information boards were installed as a result . In 2007 , a number of these have been vandalised , leaving empty boards behind . It is said that the house was the model for House Beautiful in John Bunyan 's The Pilgrim 's Progress . Its staircase survives in The Swan Hotel in Bedford ., Kempston is a town and civil parish located in Bedfordshire, England. Once known as the largest village in England, Kempston is now a town with its own town council. It has a population of about 20,000, and together with Bedford, it forms an urban area with around 100,000 inhabitants, which is the sole significant urban area in the Borough of Bedford. Kempston serves principally as a dormitory town for Bedford., A County town is usually the location of administrative or judicial functions within the county, or it has been established over time as the "de facto" main town of a county. The concept of a county town eventually became detached from its original meaning of where the county administration or county hall is based. In fact, many county towns are no longer part of the administrative county. For example, Nottingham is administered by a unitary authority entirely separate from the rest of Nottinghamshire. Many county towns are classified as cities, but all are referred to as county towns regardless of whether city status is held or not., Bedfordshire (or /bdfd/; abbreviated Beds.) is a county in the East of England. It is a ceremonial county and a historic county, covered by three unitary authorities: Bedford, Central Bedfordshire, and Luton., Central Bedfordshire is a unitary authority area in the ceremonial county of Bedfordshire, England. It was created from the merger of Mid Bedfordshire and South Bedfordshire District Councils on 1 April 2009. With a budget of £500m the unitary council provides over a hundred services to a quarter of a million people, and is responsible for schools, social services, rubbish collection, roads, planning, leisure centres, libraries, care homes and more., The East of England is one of nine official regions of England at the first level of NUTS for statistical purposes. It was created in 1994 and was adopted for statistics from 1999. It includes the ceremonial counties of Bedfordshire, Cambridgeshire, Essex, Hertfordshire, Norfolk and Suffolk. Essex has the highest population in the region., 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., Subject: houghton house, Relation: located_in_the_administrative_territorial_entity, Options: (A) bedford (B) bedfordshire (C) cambridgeshire (D) central bedfordshire (E) east (F) east of england (G) england (H) houghton (I) isle of wight (J) london (K) luton (L) milton (M) norfolk (N) north (O) nottingham (P) nottinghamshire (Q) of (R) scotland (S) south (T) suffolk (U) wales
central bedfordshire