Question: HDMS Hvidbjørnen is what class of ocean patrol vessel, also called Stanflex 3000, belonging to the Royal Danish Navy?

full_context: Document 1: Polar bear: The polar bear ("Ursus maritimus") is a carnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is a large bear, approximately the same size as the omnivorous Kodiak bear ("Ursus arctos middendorffi"). A boar (adult male) weighs around 350 – , while a sow (adult female) is about half that size. Although it is the sister species of the brown bear, it has evolved to occupy a narrower ecological niche, with many body characteristics adapted for cold temperatures, for moving across snow, ice and open water, and for hunting seals, which make up most of its diet. Although most polar bears are born on land, they spend most of their time on the sea ice. Their scientific name means "maritime bear" and derives from this fact. Polar bears hunt their preferred food of seals from the edge of sea ice, often living off fat reserves when no sea ice is present. Because of their dependence on the sea ice, polar bears are classified as marine mammals.
Document 2: Arrow-class patrol boat: The Arrow class is a series of fast patrol/assault speed boat constructed by the Sri Lanka Navy for use by its littoral warfare units, the elite Special Boat Squadron (SBS) and the Rapid Action Boat Squadron (RABS). The boat is capable of achieving high speeds and is highly maneuverable, meeting the requirements of these units in small boat operations. Armed with an autocannon or automatic grenade launcher as its primary weapon system and with multiple machine guns, the Arrow boats provides relatively high firepower despite its small size. It is also used by the navy for inshore monitoring operations.
Document 3: Khalije Fars sea explorer: The Kavoshgare Darya'ie Khalije Fars (Persian Gulf Sea Explorer) is a hydrographic and oceanographic research vessel built in 2017 by the Iranian Defense Ministry's Marine Industries Organization for the Iranian National Institute for Oceanography and Atmospheric Science. The vessel is equipped with satellite communications, advanced CCP propulsion, and data transfer systems, and the DP system for dynamic stabilization. The vessel is also equipped with 3 laboratories and 2 freezers, and offers numerous applications in the field of physical oceanography, marine chemistry, marine biology, geology, sea geophysics, and professional climatology including atmospheric and meteorological explorations in addition to sea mapping. As many as 85 mechanical, mobility, propulsion, electrical and electronics, navigation and telecommunication systems are embedded in the vessel. A total of 150 industrial, research, academic and knowledge-based centers as well as various industrial organizations spent more than 300,000 hours and carried out about 12,000 administrative activities in order to construct the ship.
Document 4: Agdlek-class cutter: The "Agdlek"-class cutter is a ship class of cutters built for and operated by the Royal Danish Navy for patrol duty in the waters of Greenland. Only one vessel of the class, HDMS "Tulugaq" , remains active. The cutters are being replaced one for one with the much larger "Knud Rasmussen"-class patrol vessel .
Document 5: HDMS Thetis (F357): HDMS "Thetis" is a "Thetis"-class ocean patrol vessel belonging to the Royal Danish Navy.
Document 6: Thetis-class ocean patrol vessel: The "Thetis"-class ocean patrol vessels or ocean patrol frigates, also called Stanflex 3000, is a class of large patrol vessels built for the Royal Danish Navy. The class comprises four ships, all built and commissioned in the early 1990s. The ships' tasks are mainly maintenance of sovereignty, search and rescue, fishery inspection and support to local (mainly Greenlandic) authorities. The operation areas are normally Greenland and the Faroe Islands, but the vessels also operate near Iceland on transit between Greenland and the Faroe Islands, and near Denmark.
Document 7: HDMS Nordkaperen (S321): HDMS "Nordkaperen" (S321) was a "Narhvalen"-class submarine of the Royal Danish Navy. She was built to the German Type 205 design at the naval dockyard in Copenhagen where she was laid down on 4 March 1966. She was launched on 18 December 1969, and was commissioned into the Royal Danish Navy on 22 December 1970. In 1994, "Nordkaperen" and sister ship "Narhvalen" were modified to bring their technical performance more in line with the Royal Danish Navy's newer "Tumleren" class . "Nordkaperen" was decommissioned on 2 February 2004.
Document 8: HDMS Hvidbjørnen (F360): HDMS "Hvidbjørnen" ("Hvidbjørnen" is older Danish for polar bear) is a "Thetis"-class ocean patrol vessel belonging to the Royal Danish Navy.
Document 9: HDMS Freja (P521): HDMS "Freja" is a "Diana"-class large ocean patrol vessel belonging to the Royal Danish Navy.
Document 10: Karelian Bear Dog: The Karelian Bear Dog (KBD) is a Finnish or Karelian breed of dog. In its home country, it is regarded as a national treasure. KBD will hunt a variety of animals. Its quick reflexes and fearless nature have made it very popular for hunting aggressive game, including bears, moose, and wild boar. It was the breed's ability to hunt and offer protection against a bear that earned the breed its name.
Document 11: HDMS Ejnar Mikkelsen (P571): HDMS "Ejnar Mikkelsen" is a Royal Danish Navy patrol vessel.
Document 12: HDMS Knud Rasmussen (P570): HDMS "Knud Rasmussen" is a Royal Danish Navy patrol vessel. "Knud Rasmussen" and her sister ships normally operate in the waters around Greenland.
Document 13: HDMS Vædderen (F359): HDMS (Her Danish Majesty's Ship) "Vædderen" (F359) is a "Thetis"-class ocean patrol vessel of the Royal Danish Navy. She is employed to exercise Danish sovereignty in waters around the Faroe Islands and Greenland.
Document 14: HDMS Narhvalen (S320): HDMS "Narhvalen" (S320) was the lead ship of her class of submarine for the Royal Danish Navy. She was built to the German Type 205 design at the naval dockyard in Copenhagen where she was laid down on 16 February 1965. She was launched on 10 September 1968, and was commissioned into the Royal Danish Navy on 27 February 1970. In 1994, "Narhvalen" and sister ship "Nordkaperen" were modified to bring their technical performance more in line with the Royal Danish Navy's newer "Tumleren" class . "Narhvalen" was decommissioned on 16 October 2003.
Document 15: HDMY Dannebrog (A540): Her Danish Majesty's Yacht "Dannebrog" (A540) (Danish: "KDM Dannebrog" ) was launched by Queen Alexandrine at Copenhagen in 1931, and commissioned on 26 May 1932. The yacht now serves as the official and private residence for Queen Margrethe II of Denmark, the Prince Consort, and members of the Royal Family when they are on official visits overseas and on summer cruises in Danish waters. When at sea, the Royal Yacht also participates in surveillance and sea-rescue services.
ground_truth: "Thetis"-class ocean patrol vessel