Question: Girlguiding North West England has headquarters in the city that is on the north bank of what river?

full_context: Document 1: City of Bradford: The City of Bradford ( ) is a local government district of West Yorkshire, England, with the status of a city and metropolitan borough. It is named after its largest settlement, Bradford, but covers a far larger area which includes the towns of Keighley, Shipley, Bingley, Ilkley, Haworth, Silsden and Denholme. Bradford has a population of 528,155, making it the fourth-most populous metropolitan district and the sixth-most populous local authority district in England. It forms part of the West Yorkshire Urban Area conurbation which in 2001 had a population of 1.5 million and the city is part of the Leeds-Bradford Larger Urban Zone (LUZ), which, with a population of 2,393,300, is the fourth largest in the United Kingdom after London, Birmingham and Manchester.
Document 2: Stagecoach North West: Stagecoach North West was a major operator of bus services in North West England. It was a subsidiary of the Stagecoach Group, and had its origins in the purchase of Cumberland in 1987 and Ribble Motor Services in 1988 from the National Bus Company. The head office of Stagecoach North West was in Carlisle. Although the cities of Liverpool and Manchester are in the North West of England, Stagecoach Manchester and Stagecoach Merseyside were run as separate divisions.
Document 3: Blackburn: Blackburn is a large town in Lancashire, England. It lies to the north of the West Pennine Moors on the southern edge of the Ribble Valley, 9 mi east of Preston, 20.9 mi NNW of Manchester and 9 mi north of the Greater Manchester border. Blackburn is bounded to the south by Darwen, with which it forms the unitary authority of Blackburn with Darwen; Blackburn is its administrative centre. At the time of the UK Government's 2001 census, Blackburn had a population of 105,085, whilst the wider borough of Blackburn with Darwen had a population of 140,700. Blackburn had a population of 117,963 in 2011, a massive increase since 2001.
Document 4: Greater Manchester Built-up Area: The Greater Manchester Built-up Area is an area of land defined by the Office for National Statistics (ONS), consisting of the large conurbation that encompasses the urban element of the city of Manchester and the continuous metropolitan area that spreads outwards from it, forming much of Greater Manchester in North West England. According to the United Kingdom Census 2011, the Greater Manchester Built-up Area has a population of 2,553,379 making it the second most populous conurbation in the United Kingdom after the Greater London Built-up Area and the thirteenth largest in the European Union. This was an increase of 14% from the population recorded at the United Kingdom Census 2001 of 2,240,230, when it was known as the Greater Manchester Urban Area.
Document 5: Districts of England: The districts of England (also known as local authority districts or local government districts to distinguish from unofficial city districts) are a level of subnational division of England used for the purposes of local government. As the structure of local government in England is not uniform, there are currently four principal types of district-level subdivision. There are a total of 326 districts made up of 36 metropolitan boroughs, 32 London boroughs, 201 non-metropolitan districts, 55 unitary authorities, as well as the City of London and the Isles of Scilly which are also districts, but do not correspond to any of these categories. Some districts are styled as boroughs, cities, or royal boroughs; these are purely honorific titles, and do not alter the status of the district. All boroughs and cities, and a few districts, are led by a mayor who in most cases is a ceremonial figure elected by the district council, but – after local government reform – is occasionally a directly elected mayor who makes most of the policy decisions instead of the council.
Document 6: Scheduled monuments in Greater Manchester: There are 37 scheduled monuments in Greater Manchester, a metropolitan county in North West England. In the United Kingdom, a scheduled monument is a "nationally important" archaeological site or historic building that has been given protection against unauthorised change by being placed on a list (or "schedule") by the Secretary of State for Culture, Media and Sport; English Heritage takes the leading role in identifying such sites. Scheduled monuments are defined in the Ancient Monuments and Archaeological Areas Act 1979 and the National Heritage Act 1983. They are also referred to as scheduled ancient monuments. There are about 18,300 scheduled monument entries on the list, which is maintained by English Heritage; more than one site can be included in a single entry. While a scheduled monument can also be recognised as a listed building, English Heritage considers listed building status as a better way of protecting buildings than scheduled monument status. If a monument is considered by English Heritage to "no longer merit scheduling" it can be descheduled.
Document 7: North West England: North West England, one of nine official regions of England, consists of the five counties of Cheshire, Cumbria, Greater Manchester, Lancashire and Merseyside. The North West had a population of 7,052,000 in 2011. It is the third most populated region in the United Kingdom after the South East and Greater London.
Document 8: Girlguiding North West England: Girlguiding North West England is one of the nine Countries and Regions of Girlguiding UK. It is further subdivided into 17 Girlguiding Counties. These are not the same as the counties defined by the British government. The region was introduced in 1960 covering the Counties of Cumberland, Westmorland, Cheshire, Lancashire, plus the Isle of Man, with the headquarters in Preston. It is also known, for example to the Charity Commissioners, as the Guide Association North West England.
Document 9: Ribble Valley: Ribble Valley is a local government district with borough status within the non-metropolitan county of Lancashire, England. The total population of the non-metropolitan district at the 2011 Census was 57,132. Its council is based in Clitheroe. Other places include Whalley, Longridge and Ribchester. The area is so called due to the River Ribble which flows in its final stages towards its estuary near Preston. The area is popular with tourists who enjoy the area's natural unspoilt beauty, much of which lies within the Forest of Bowland.
Document 10: Preston, Lancashire: Preston is a city and the administrative centre of Lancashire, England. On the north bank of the River Ribble, it is an urban settlement and unparished area that together with surrounding rural civil parishes forms the City of Preston local government district of Lancashire. The district obtained city status in 2002, becoming England's 50th city in the 50th year of Queen Elizabeth II's reign. Preston has a population of 114,300, the City of Preston district 132,000 and the Preston Built-up Area 313,322. The Preston Travel To Work Area, in 2011, had a population of 420,661 compared to 354,000 in the previous census.
Document 11: South West England: South West England is one of nine official regions of England. It is the largest in area, covering 9200 sqmi and the counties of Gloucestershire, Bristol, Wiltshire, Somerset, Dorset, Devon and Cornwall, as well as the Isles of Scilly. Five million people live in South West England.
Document 12: Accrington: Accrington is a town in the Hyndburn borough of Lancashire, England. It lies about 4 mi east of Blackburn, 6 mi west of Burnley, 13 mi east of Preston, 20 mi north of Manchester city centre and is situated on the mostly culverted River Hyndburn. Commonly abbreviated by locals to "Accy", the town has a population of 54,800 according to the 2001 census and the urban area has a population of over 85,000.
Document 13: North East England: North East England is one of nine official regions of England at the first level of NUTS for statistical purposes. It covers Northumberland, County Durham, Tyne and Wear, and the area of the former county of Cleveland in North Yorkshire. The region is home to three large conurbations: Teesside, Wearside, and Tyneside, the latter of which is the largest of the three and the eighth most populous conurbation in the United Kingdom. There are only three cities in the region; Newcastle upon Tyne is the largest city in the region with a population of just under 280,000, followed by Sunderland, both of which are located in the metropolitan county of Tyne and Wear. The city of Durham is the county town of County Durham. Other large settlements in the region include Darlington; Gateshead; Hartlepool; Middlesbrough; South Shields; Stockton-on-Tees and Washington. In common parlance, and geographically, more of north Yorkshire would usually be regarded as part of north-east England.
Document 14: 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 15: Peterborough: Peterborough ( ) is a cathedral city in Cambridgeshire, England, with a population of 183,631 in 2011. Historically part of Northamptonshire, it is 73.6 mi north of London, on the River Nene which flows into the North Sea 30 mi to the north-east. The railway station is an important stop on the East Coast Main Line between London and Edinburgh.
ground_truth: Ribble