Please answer the following question: Information:  - Stallbron (Swedish: "The Stable Bridge") is an arch bridge located in Gamla stan, the old town in central Stockholm, Sweden. Stretching some 20 meters over Stallkanalen it connects Riksgatan passing through the Parliament Building on Helgeandsholmen to the square Mynttorget on Stadsholmen from where Västerlånggatan extends it further south.  - Riddarholmen ("The Knights' Islet") is a small islet in central Stockholm, Sweden. The island forms part of Gamla Stan, the old town, and houses a number of private palaces dating back to the 17th century. The main landmark is the church Riddarholmskyrkan, used as Sweden's royal burial church from the 17th century to 1950, and where a number of earlier Swedish monarchs also lie buried.  - Vasabron (Swedish: "The Vasa Bridge") is a bridge over Norrström in central Stockholm, Sweden connecting Norrmalm to Gamla stan, the old city.  - Mälaren, historically referred to as Lake Malar in English, is the third-largest freshwater lake in Sweden (after Vänern and Vättern). Its area is 1,140 km² and its greatest depth is 64 m. Mälaren spans 120 kilometers from east to west. The lake drains, from south-west to north-east, into the Baltic Sea through the Södertälje Canal, Hammarbyslussen, Karl Johansslussen and Norrström. The easternmost bay of Mälaren, in central Stockholm, is called Riddarfjärden. The lake is located in Svealand and bounded by the provinces of Uppland, Södermanland, Närke, and Västmanland. The two largest islands in Mälaren are Selaön (91 km²) and Svartsjölandet (79 km²).  - Norrström in central Stockholm connects Lake Mälaren with the Baltic Sea. It runs from Riddarfjärden, north of Gamla stan, to Saltsjön. Two islands lie within it, Strömsborg and Helgeandsholmen. It is one of two natural waterways between Mälaren and the Baltic sea, the other being Söderström south of Gamla stan. Norrström is crossed by Centralbron and the adjacent pedestrian bridge, Vasabron, Riksbron north of Helgeandsholmen which continues into Riksgatan and Stallbron south of the island, Norrbro crossing Helgeandsholmen, and Strömbron.  - Finland , officially the Republic of Finland, is a sovereign state in Northern Europe. A peninsula with the Gulf of Finland to the south and the Gulf of Bothnia to the west, the country has land borders with Sweden to the northwest, Norway to the north, and Russia to the east. Estonia is south of the country across the Gulf of Finland. Finland is a Nordic country situated in the geographical region of Fennoscandia, which also includes Scandinavia. Finland's population is 5.5 million (2014), staying roughly on the same level over the past two decades. The majority of the population is concentrated in the southern region. In terms of area, it is the eighth largest country in Europe and the most sparsely populated country in the European Union.  - Gamla stan ("The Old Town"), until 1980 officially Staden mellan broarna ("The Town between the Bridges"), is the old town of Stockholm, Sweden. Gamla stan consists primarily of the island Stadsholmen. Officially, but not colloquially, Gamla stan includes the surrounding islets Riddarholmen, Helgeandsholmen, and Strömsborg.  - Kanslikajen (Swedish: "Chancellery Quay") is a quay in Gamla stan, the old town of Stockholm, Sweden, leading west along the southern shore of the canal Stallkanalen from Stallbron and Mynttorget to Vasabron.  - The Baltic Sea (  ; ) is a sea of the Atlantic Ocean, enclosed by Scandinavia, Finland, the Baltic countries, and the North European Plain. It includes the Gulf of Bothnia, the Bay of Bothnia, the Gulf of Finland, the Gulf of Riga, and the Bay of Gdask. The sea stretches from 53°N to 66°N latitude and from 10°E to 30°E longitude. A mediterranean sea of the Atlantic, with limited water exchange between the two bodies, the Baltic Sea drains through the Danish islands into the Kattegat by way of the straits of Øresund, the Great Belt, and the Little Belt.  - Stockholm County ("Stockholms län") is a county or "län" (in Swedish) on the Baltic sea coast of Sweden. It borders Uppsala County and Södermanland County. It also borders Mälaren and the Baltic Sea. The city of Stockholm is the capital of Sweden. Stockholm County is divided by the historic provinces of Uppland (Roslagen) and Södermanland (Södertörn). More than one fifth of the Swedish population lives in the county. Stockholm County is also one of the statistical "riksområden" (national areas) according to , Nomenclature of Territorial Units for Statistics within the EU. With more than two million inhabitants, Stockholm is the most densely populated county of Sweden.  - Riddarhuskajen ( Swedish : `` Quay of the House of Knights '' ) is a quay in Gamla stan , the old town in central Stockholm , Sweden . Located north of both the square Riddarhustorget and the House of Knights , it stretches east from the north - western corner of the island Stadsholmen to the bridge Vasabron and the alley Riddarhusgränd . Just west of the quay passes the motorway Centralbron , while the quay Kanslikajen forms an eastward extension leading past Kanslihuset to Stallbron and Mynttorget . The two wings of the House of Knights were completed in 1870 to the design of A W Edelsvärd ( 1824 -- 1919 ) , otherwise mostly remembered for his standard design of Swedish railway stations . The gardens of the building as completed are but a pale reminiscence of the original intentions which reflects the decline of power of the Swedish nobility , and still , the present state of things hardly give any indications of the character of the place in the early 19th century -- a row of hovels in stone and wood lined up along the present quay hid the heap of rubbish where the statue of Axel Oxenstierna is found today , while a harbour surrounded by a wooden paling extended the premises into the water . The current name of the quay was proposed in 1921 and made official in 1925 .  - Riddarhusgränd (Swedish: "House of Knights' Alley") is an alley in Gamla stan, the old town in central Stockholm, Sweden. Stretching north from the square Riddarhustorget to the bridge Vasabron, it passes between the Swedish House of Knights ("Riddarhuset") and the Bonde Palace forming a parallel street to Rådhusgränd. On either side of its northern end are the quays Riddarhuskajen and Kanslikajen.  - Stockholm (or ) is the capital of Sweden and the most populous city in the Nordic countries; 932,917 people live in the municipality, approximately 1.5 million in the urban area, and 2.3 million in the metropolitan area. The city is spread across 14 islands on the coast in the southeast of Sweden at the mouth of Lake Mälaren, by the Stockholm archipelago and the Baltic Sea. The area has been settled since the Stone Age, in the 6th millennium BC, and was founded as a city in 1252 by a Swedish statesman Birger Jarl. It is also the capital of Stockholm County.  - The Stockholm archipelago is the largest archipelago in Sweden, and the second-largest archipelago in the Baltic Sea (the largest being across the Baltic in Finland).  - Denmark is a Scandinavian country in Europe. The southernmost and smallest of the Nordic countries, it is south-west of Sweden and south of Norway, and bordered to the south by Germany. The Kingdom of Denmark is the sovereign state that comprises Denmark proper and two autonomous constituent countries in the North Atlantic Ocean: the Faroe Islands and Greenland. Denmark has a total area of , and a population of 5.7 million. The country consists of a peninsula, Jutland, and an archipelago of 443 named islands, with the largest being Zealand and Funen. The islands are characterised by flat, arable land and sandy coasts, low elevation and a temperate climate.  - Sweden, officially the Kingdom of Sweden (Swedish: ), is a Scandinavian country in Northern Europe. It borders Norway to the west and Finland to the east, and is connected to Denmark in the southwest by a bridge-tunnel across the Öresund. At , Sweden is the third-largest country in the European Union by area, with a total population of 10.0 million. Sweden consequently has a low population density of , with the highest concentration in the southern half of the country. Approximately 85% of the population lives in urban areas.    What object entity has the relation of 'located next to body of water' with the subject 'riddarhuskajen'?   Choices: - atlantic ocean  - baltic sea  - gulf of finland  - main  - mälaren  - norrström  - riddarfjärden  - stallkanalen  - vänern  - vättern
A:
norrström