Question: Who fathered Helena Sverkersdotter, of the country where the founder of Air Greenland is located?

full_context: Document 1: Korean Air: Korean Air's international passenger division and related subsidiary cargo division together serve 127 cities in 44 countries, while its domestic division serves 12 destinations. It is among the top 20 airlines in the world in terms of passengers carried and is also the top-ranked international cargo airline. Incheon International Airport serves as Korean Air's international hub. Korean Air also maintains a satellite headquarters campus at Incheon. The majority of Korean Air's pilots, ground staff, and flight attendants are based in Seoul.
Document 2: Sterling Airlines: Sterling Airlines A/S was a low-cost airline with its head office at Copenhagen Airport South in Dragør, Dragør Municipality, Denmark. It was created in September 2005 through the merger of two Danish airlines — Sterling European Airlines and Maersk Air — which had been acquired by the Icelandic investment group Fons Eignarhaldsfélag a few months before for MDKK 500. Fons was owned by Icelandic business tycoon Palmi Haraldsson. One month after the merger, Sterling Airlines was sold to the FL Group for an amount of MDKK 1500. In December 2006, Sterling was sold again, this time to Nordic Travel Holding. On 6 January 2006, Hannes Þór Smárason, CEO of the FL Group, stated that a merger of EasyJet and Sterling was a possibility.
Document 3: Helen of Sweden (13th century): Helen of Sweden ( 1190 – 1247, Swedish: "Helena") was a Swedish princess and abbess, daughter of King Sverker II of Sweden and the mother of Queen Catherine of Sweden. She was Abbess of Vreta Abbey.
Document 4: Helvis of Ibelin: Helvis of Ibelin (after 1178 – before 1 June 1216) was a daughter of Balian of Ibelin and his wife, Maria Komnene, who was the dowager Queen of Jerusalem. Helvis was a member of the House of Ibelin. She was Lady of Sidon by her first and second marriage.
Document 5: Yolanda of Poland: Blessed Yolanda of Poland (also known as Helen; 1235 – 11 June 1298) was the daughter of King Béla IV of Hungary and Maria Laskarina. She was the sister of Saint Margaret of Hungary and Saint Kinga (Cunegunda). One of her paternal aunts was the great Franciscan saint, Elizabeth of Hungary.
Document 6: Cathay Pacific: Cathay Pacific Airways Limited is the flag carrier of Hong Kong, with its head office and main hub located at Hong Kong International Airport. The airline's operations and subsidiaries have scheduled passenger and cargo services to 201 destinations in more than 60 countries worldwide including codeshares and joint ventures. Cathay Pacific operates a fleet of wide - body aircraft, consisting of Airbus A330, Airbus A350 and Boeing 777 equipment. Cathay Pacific Cargo operates two models of the Boeing 747. Wholly owned subsidiary airline Cathay Dragon operates to 44 destinations in the Asia - Pacific region from its Hong Kong base. In 2010, Cathay Pacific and Cathay Pacific Cargo, together with Dragonair (rebranded Cathay Dragon), carried nearly 27 million passengers and over 1.8 million tons of cargo and mail.
Document 7: Airport: Most of the world's airports are owned by local, regional, or national government bodies who then lease the airport to private corporations who oversee the airport's operation. For example, in the United Kingdom the state-owned British Airports Authority originally operated eight of the nation's major commercial airports - it was subsequently privatized in the late 1980s, and following its takeover by the Spanish Ferrovial consortium in 2006, has been further divested and downsized to operating just five. Germany's Frankfurt Airport is managed by the quasi-private firm Fraport. While in India GMR Group operates, through joint ventures, Indira Gandhi International Airport and Rajiv Gandhi International Airport. Bengaluru International Airport and Chhatrapati Shivaji International Airport are controlled by GVK Group. The rest of India's airports are managed by the Airports Authority of India.
Document 8: Victoria, Crown Princess of Sweden: Victoria, Crown Princess of Sweden, Duchess of Västergötland (Victoria Ingrid Alice Désirée; , born 14 July 1977) is the heir apparent to the Swedish throne, as the eldest child of King Carl XVI Gustaf. If she ascends to the throne as expected, she will be Sweden's fourth queen regnant (after Margaret, Christina and Ulrika Eleonora) and the first since 1720.
Document 9: List of SAS Group destinations: SAS Group destinations This is a complete list of the SAS Group airlines destinations, including Air Greenland, Scandinavian Airlines and Widerøe. In September 2010 the SAS Group airlines served 180 destinations in 35 countries on 4 continents.
Document 10: United Nations Regional Groups: the African Group, with 54 member states the Asia - Pacific Group, with 53 member states the Eastern European Group, with 23 member states the Latin American and Caribbean Group (GRULAC), with 33 member states the Western European and Others Group (WEOG), with 28 member states, plus 1 member state (the United States) as an observer state.
Document 11: Sabena: The Societé Anonyme Belge d'Exploitation de la Navigation Aérienne (French; "Belgian Corporation for Air Navigation Services"), better known internationally by the acronym Sabena or SABENA, was the national airline of Belgium from 1923 to 2001, with its base at Brussels National Airport. After its bankruptcy in 2001, the newly formed SN Brussels Airlines took over part of Sabena's assets in February 2002, which became Brussels Airlines after a merger with Virgin Express in March 2007. The airline's corporate headquarters were located in the Sabena House on the grounds of Brussels Airport in Zaventem.
Document 12: Helén murder: The Helén murder () is a sadistic murder of 10-year-old Helén Nilsson in Hörby, Sweden, in March 1989. The murderer, Ulf Olsson, the so-called Helén man ("Helén-mannen"), was convicted in April 2005, having been found after a DNA test in 2004.
Document 13: Qantas: Qantas flies to 20 domestic destinations and 21 international destinations in 14 countries across Africa, the Americas, Asia, Europe and Oceania excluding the destinations served by its subsidiaries. The entire Qantas group serves 65 domestic and 31 international destinations.
Document 14: Air Greenland: Air Greenland A/S, also known as Greenlandair, is the flag carrier airline of Greenland, jointly owned by the SAS Group (37.5%), the Greenlandic Government and the Danish Government. It operates a fleet of 32 aircraft, including 1 airliner used for transatlantic and charter flights, 9 fixed-wing aircraft primarily serving the domestic network, and 22 helicopters feeding passengers from the smaller communities into the domestic airport network. Flights to heliports in the remote settlements are operated on contract with the government of Greenland.
Document 15: SAS Group: SAS AB (Scandinavian Airlines System Aktiebolag) (, , ), trading as SAS Group, is an airline holding company headquartered in the SAS Frösundavik Office Building in Solna Municipality, Sweden. It is the owner of the airlines Scandinavian Airlines and Scandinavian Airlines Ireland. SAS once owned 19.9% of the now defunct Spanish airline Spanair as well as shares in Estonian Air and Skyways Express. It also owns the aviation services companies SAS Business Opportunities, SAS Cargo Group, SAS Ground Services and SAS Technical Services. In addition, it holds minority ownership of Air Greenland. SAS Group is partially owned by the governments of Sweden and Denmark with a 21.4% and 14.3% ownership, respectively. The remaining 64.3% is held by private owners, of which Foundation Asset Management owns 7.6%. The company is listed on the Oslo Stock Exchange, the Stockholm Stock Exchange, and the Copenhagen Stock Exchange.
ground_truth: Sverker II of Sweden
sub_queries: Air Greenland >> founded by Answer: Scandinavian Airlines
Scandinavian Airlines >> country Answer: Sweden
Who fathered Helena Sverkersdotter of Sweden ? Answer: Sverker II of Sweden