Please answer the following question: Information: - St Johns railway station is on the South Eastern Main Line in the United Kingdom, located in the London Borough of Lewisham, in south-east London. It is down-line from and is situated between and . - The Chatham Main Line is a railway line in England that links London Victoria and Dover Priory / Ramsgate, travelling via Medway (of which the town of Chatham is part, hence the name). - The North Kent Line is a railway which runs from a junction of Britain's South East Main Line, east of St Johns railway station, Greater London to a point south-west of station by the River Medway in Medway where it links to the Chatham Main Line and where services usually terminate at Gillingham or closer at Dartford along the north coast/estuary. The London terminus is Charing Cross station. - Kent is a county in South East England and one of the home counties. It borders Greater London to the north west, Surrey to the west, East Sussex to the south west, and Essex across the Thames Estuary to the north. The county town is Maidstone. - The Hoo Peninsula is a peninsula in Kent, England (United Kingdom) separating the estuaries of the rivers Thames and Medway. It is dominated by a line of sand and clay hills, surrounded by an extensive area of marshland composed of alluvial silt. The name "Hoo" is the Old English word for "spur of land". - A marsh is a wetland that is dominated by herbaceous rather than woody plant species. Marshes can often be found at the edges of lakes and streams, where they form a transition between the aquatic and terrestrial ecosystems. They are often dominated by grasses, rushes or reeds. If woody plants are present they tend to be low-growing shrubs. This form of vegetation is what differentiates marshes from other types of wetland such as swamps, which are dominated by trees, and mires, which are wetlands that have accumulated deposits of acidic peat. - Gravesham is a local government district with borough status in north-west Kent, England. Its administrative centre and largest town is Gravesend, which was known as "Gravesham" in ancient times. - The River Medway is a river in South East England. It rises in the High Weald, Sussex, and flows through Tonbridge, Maidstone and the Medway conurbation in Kent before emptying into the Thames Estuary near Sheerness, a total distance of . About of the river lies in Sussex, with the remainder being in Kent. - Higham is a large village, and electoral ward bordering the Hoo Peninsula, in Kent, between Gravesend and Rochester. The civil parish of Higham is in Gravesham district and as at the 2001 UK Census, had a population of 3,938, increasing slightly to 3,962 at the 2011 Census. - Hoo Junction is a rail yard on the North Kent Line , near the village of Higham , Kent and Shorne Marshes , operated by DB Schenker . It is between Gravesend and Higham stations , at the junction with the freight - only single - track Hoo branch to the Hoo Peninsula . - Dartford is the principal town in the Borough of Dartford, Kent, England. The town is situated on the border of Kent and Greater London, bordering the London Borough of Bexley. It also borders the Borough of Thurrock, Essex, via the Dartford Crossing of the River Thames and Gravesham to its east. - Medway is a conurbation and unitary authority in South East England. It had a population in 2014 of 274,015. The unitary authority was formed in 1998 when the City of Rochester-upon-Medway amalgamated with Gillingham Borough Council and part of Kent County Council to form Medway Council, a unitary authority independent of Kent County Council. - Silt is granular material of a size between sand and clay, whose mineral origin is quartz and feldspar. Silt may occur as a soil (often mixed with sand or clay) or as sediment mixed in suspension with water (also known as a suspended load) in a body of water such as a river. It may also exist as soil deposited at the bottom of a water body. Silt has a moderate specific area with a typically non-sticky, plastic feel. Silt usually has a floury feel when dry, and a slippery feel when wet. Silt can be visually observed with a hand lens. Given the information, choose the subject and object entities that have the relation of 'instance of'.
A:
hoo junction , railway station