Information: - A unitary authority is a type of local authority that has a single tier and is responsible for all local government functions within its area or performs additional functions which elsewhere in the relevant country are usually performed by national government or a higher level of sub-national government. - Leicester is a city and unitary authority area in the East Midlands of England, and the county town of Leicestershire. The city lies on the River Soar and at the edge of the National Forest. - Network Rail is the owner (via its subsidiary Network Rail Infrastructure Ltd which was known as Railtrack plc before 2003)) and infrastructure manager of most of the rail network in England, Scotland and Wales. Network Rail is an arms length public body of the Department for Transport with no shareholders, which reinvests its income in the railways. - East Midlands Trains (EMT) is a British train operating company owned by Stagecoach Group. - Leicestershire (or ; abbreviation Leics.) is a landlocked county in the English Midlands. It takes its name from the City of Leicester, traditionally its administrative centre, although the City of Leicester unitary authority is today administered separately from the rest of Leicestershire. The county borders Nottinghamshire to the north, Lincolnshire to the north-east, Rutland to the east, Northamptonshire to the south-east, Warwickshire to the south-west, Staffordshire to the west, and Derbyshire to the north-west. The border with most of Warwickshire is Watling Street (the A5). - 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. - Nottingham is a city and unitary authority area in Nottinghamshire, England, located south of Sheffield and north of Leicester. - Stagecoach Group plc is an international transport group operating buses, trains, trams and express coaches. The group was founded in 1980 by current chairman Brian Souter, his sister Ann Gloag, and her former husband Robin. The group is based in Perth, Scotland, and has operations in the United Kingdom and North America. - The Ivanhoe Line was the name given to local passenger services operated on the Midland Main Line between Leicester and Loughborough between 1993 , when three intermediate stations were re-opened , and June 2005 , when the separate Leicester -- Loughborough service was withdrawn . Intermediate stations on the route are now served by East Midlands Trains ' hourly service between Leicester , Nottingham and Lincoln . - A train operating company (TOC) is a business operating passenger trains on the railway system of Great Britain under the collective National Rail brand. TOCs have existed since the privatisation of the network under the Railways Act 1993. - The Midland Main Line is a major railway line in England from London to Sheffield in the North of England. The line is under the Network Rail description of Route 19; it comprises the lines from London's St. Pancras station via Leicester, Derby/Nottingham and Chesterfield in the East Midlands. - The East Midlands is one of nine official regions of England at the first level of NUTS for statistical purposes. The eastern part of the Midlands, it consists of Derbyshire, Leicestershire, Lincolnshire, Northamptonshire, Nottinghamshire and Rutland. - Derby is a city and unitary authority in Derbyshire, England. It lies on the banks of the River Derwent in the south of Derbyshire, of which it was traditionally the county town. At the 2011 census, the population was 248,700. Derby gained city status in 1977. - The River Soar is a major tributary of the River Trent in the English East Midlands and is the principal river of Leicestershire. The source of the river is midway between Hinckley and Lutterworth. The river then flows north through Leicester, where it is joined by the Grand Union Canal. Continuing on through the Leicestershire Soar Valley, it passes Loughborough and Kegworth until it reaches the Trent at the county boundary. In the 18th century, the Soar was made navigable, initially between Loughborough and the Trent, and then through to Leicester. It was not until the early 19th century that it was linked by the Grand Union Canal to the wider network to the south and to London. - London is the capital and most populous city of England and the United Kingdom, as well as the most populous city proper in the European Union. Standing on the River Thames in the south east of the island of Great Britain, London has been a major settlement for two millennia. It was founded by the Romans, who named it "Londinium". London's ancient core, the City of London, largely retains its medieval boundaries. Since at least the 19th century, "London" has also referred to the metropolis around this core, historically split between Middlesex, Essex, Surrey, Kent, and Hertfordshire, which today largely makes up Greater London, governed by the Mayor of London and the London Assembly. - 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. - 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. - Chesterfield is a market town and a borough in Derbyshire, England. It lies north of Derby and south of Sheffield, at the confluence of the rivers Rother and Hipper. The borough which includes the settlements of Whittington, Brimington and Staveley had a population of 103,800 in 2011. Chesterfield is the second largest town in the ceremonial county of Derbyshire, after the city of Derby. What entity does 'ivanhoe line' has the relation 'instance of' with?
A:
railway system