Question: What is the title of one of Pippi in the South Seas writers books?

full_context: Document 1: Astrid Lindgren Prize: The Astrid Lindgren-priset, or Astrid Lindgren Prize in English, is a Swedish literary award. It is named after the popular Swedish writer of the same name. It is more specific to Scandinavia than the International Astrid Lindgren Memorial Award. It is awarded annually on Astrid Lindgren's birthday, 14 November.
Document 2: Douglas (parrot): Douglas (hatched ca 1967) is the male scarlet macaw that played the parrot "Rosalinda" in the 1970 Pippi Longstocking movie "Pippi in the South Seas".
Document 3: Pippi in the South Seas (book): Pippi in the South Seas is a 1948 sequel to Astrid Lindgren's classic children's books, "Pippi Longstocking" and "Pippi Goes on Board". It is set sometime after the events of the original book and centers around Pippi's further misadventures and experiences, and the main protagonist's theory that the reason for her father's mysterious disappearance that he was hailed as king of an island of natives is confirmed as true.
Document 4: Moominpappa at Sea: Moominpappa at Sea (Swedish: "Pappan och havet", literally "The father and the sea") is the seventh book in the Moomin books by Finnish author Tove Jansson. It is based primarily around the character of Moominpappa. It was first published in 1965. "Moominpappa at Sea" forms the basis of episodes 25 and 26 in the 1990 TV series. The original title is a loose reference to Hemingway novel "The Old Man and the Sea", though this is not reflected in the translation.
Document 5: Astrid Lindgren: Astrid Anna Emilia Lindgren (born Ericsson; ] ; 14 November 1907 – 28 January 2002) was a Swedish writer of fiction and screenplays. She is best known for children's book series featuring Pippi Longstocking, Emil i Lönneberga, Karlsson-on-the-Roof, and the Six Bullerby Children ("Children of Noisy Village" in the US), as well as the children's fantasy novels "Mio, My Son", "Ronia the Robber's Daughter", and "The Brothers Lionheart".
Document 6: Bill Bergson Lives Dangerously: Bill Bergson Lives Dangerously (original Swedish title: "Mästerdetektiven Blomkvist lever farligt") is a 1951 Swedish novel written by Astrid Lindgren. It's the 2nd book about the Master Detective Kalle Blomkvist. In this book the Rövarspråket ("Robber Language") appears for the first time and is very popular until present. According to the book, Eva-Lotta's father Master Baker told her when he and his friends spoke "Rövarspråket" as boys.
Document 7: Barbro Lindgren: Barbro Lindgren (born 18 March 1937) is a Swedish writer of children's books and books for adult readers. For her lasting contribution as a children's writer, Lindgren was a finalist for the biennial, international Hans Christian Andersen Award in 2004. Ten years later she won the annual Astrid Lindgren Memorial Award. The biggest cash prize in children's and young-adult literature, it rewards a writer, illustrator, oral storyteller, or reading promoter for its entire body of work.
Document 8: Pippi Goes on Board (book): Pippi Goes on Board is a 1946 sequel to Astrid Lindgren's classic children's chapter book, "Pippi Longstocking". It was followed by a further sequel "Pippi in the South Seas". It was filmed in 1969 for a TV series and edited into a film in 1969.
Document 9: 3204 Lindgren: 3204 Lindgren or Asteroid Lindgren (Swedish: "Asteroiden Lindgren" ) is a main-belt asteroid discovered by Nikolai Stepanovich Chernykh on September 1, 1978. In 1996 it was named after the Swedish writer Astrid Lindgren following a proposal by the Russian Academy of Science. When announced, she is said to have declared "From now on you can address me Asteroid Lindgren".
Document 10: Astrid Lindgren's World: Astrid Lindgren's World (Swedish: "Astrid Lindgrens värld" ) is a theme park located in Astrid Lindgren's native city Vimmerby, Sweden. It was opened in 1981 as Sagobyn ("Fairytale Village"). In its 130,000 square metres, visitors meet all the beloved characters from Astrid Lindgren's books in person. All the environments are built as prescribed in the books and they give child visitors the possibility to enter into the stories of "Pippi Longstocking", "Emil i Lönneberga", "Karlsson-on-the-Roof", and many others of Astrid Lindgren's beloved characters.
Document 11: Karlsson-on-the-Roof: Karlsson-on-the-Roof (Swedish: "Karlsson på taket") is a character who figures in a series of children's books by the Swedish author Astrid Lindgren. A cartoon adaptation of the series became popular in the Soviet Union when it was released in the 1970s. These adaptations are still celebrated to this day as an integral part of the Russian cartoon industry. Karlsson, together with Cheburashka and other such characters, are recognized as a national icon. Lindgren may have borrowed the idea for the series from a similar story about Mr. O'Malley in the comic strip "Barnaby" (1942) by Crockett Johnson.
Document 12: Sjörövar Fabbe: Sjörövar Fabbe (English: "Pirate grandpa Fabian") is a Swedish shanty-style children's song originally written by Georg Riedel and Astrid Lindgren for the film "Pippi in the South Seas" ("Pippi Långstrump på de sju haven") in 1970. The lyrics are about Pippi Longstocking's great grandfather Fabian "Fabbe" Longstocking who was a feared pirate captain on all seven seas. The last line of the chorus "Tjo-hej hadelittan lej" is a fictional language. The song was originally performed by Pippi Longstocking actress Inger Nilsson who published it in 1975 as B-side of the single "Här kommer Pippi Långstrump". In 2001, it was covered as crossover version with the melody of Dio's "Holy Diver" by the Swedish metal band Black Ingvars. Other Swedish versions are by Plura Jonsson in 1999, by Siw Malmkvist & Tove from 2003 and by Johanna Grüssner & Mika Pohjola who performed a jazz version of this song in 2006. A Norwegian version with lyrics by Marit Trulsrud is by Anita Hegerland and Frank Cook from 1970. There is also a German version called Seeräuber-Opa Fabian with lyrics by Helmut Harun. It was first performed by actress Eva Mattes in 1970 and covered in 2012 by German singer Lena Meyer-Landrut for the compilation album "Giraffenaffen".
Document 13: Pippi in the South Seas (film): Pippi in the South Seas (original title: "Pippi Långstrump på de sju haven") is a 1970 Swedish movie, based on the eponymous children's books by Astrid Lindgren with the cast of the 1969 TV series "Pippi Longstocking". It was released in the USA in 1975.
Document 14: Astrid Lindgren Memorial Award: The Astrid Lindgren Memorial Award (Swedish: "Litteraturpriset till Astrid Lindgrens minne" ) is an international children's literary award established by the Swedish government in 2002 to honour the Swedish children's author Astrid Lindgren (1907–2002). The prize is five million SEK, making it the richest award in children's literature and the second or third richest literary prize in the world.
Document 15: Dekada '70 (novel): Dekada '70 ("Dekada '70: Ang Orihinal at Kumpletong Edisyon"), translated literally into English as "[Decade] '70's", is a Filipino novel written by Lualhati Bautista. The book was made into a film in 2002.
ground_truth: "The Brothers Lionheart".