Question: Gathering Blue is a young adult-social science novel, written by which American writer credited with more than thirty children's books, and has won two Newbery Medals?

full_context: Document 1: Number the Stars: Number the Stars (1989) is a work of historical fiction by American author Lois Lowry, about the escape of a Jewish family (the Rosens) from Copenhagen during World War II.
Document 2: Ttyl (novel): ttyl is a young adult novel written by Lauren Myracle and is also the first book in the 'Internet Girls' series. In 2004, it gained attention for being the first novel written entirely in the style of instant messaging conversation. The novel was a "New York Times", "Publishers Weekly", and a "Book Sense" bestseller. "ttyl" is internet slang for "Talk to you later".
Document 3: E. L. Konigsburg: Elaine Lobl Konigsburg (February 10, 1930 – April 19, 2013) was an American writer and illustrator of children's books and young adult fiction. She is one of six writers to win two Newbery Medals, the venerable American Library Association award for the year's "most distinguished contribution to American children's literature."
Document 4: Son (novel): Son is the final entry in "The Giver Quartet" by Lois Lowry. It was preceded by "Messenger", the third book of the series. The book follows Claire, the mother of Gabriel, the baby seen in "The Giver".
Document 5: Katherine Paterson: Katherine Womeldorf Paterson (born October 31, 1932) is a Chinese-born American writer best known for children's novels. For four different books published 1975-1980, she won two Newbery Medals and two National Book Awards. She is one of three people to win the two major international awards; for "lasting contribution to children's literature" she won the biennial Hans Christian Andersen Award for Writing in 1998 and for her career contribution to "children's and young adult literature in the broadest sense" she won the Astrid Lindgren Memorial Award from the Swedish Arts Council in 2006, the biggest monetary prize in children's literature. Also for her body of work she was awarded the NSK Neustadt Prize for Children's Literature in 2007 and the Laura Ingalls Wilder Medal from the American Library Association in 2013. She was the second U.S. National Ambassador for Young People's Literature, serving 2010 and 2011.
Document 6: Laura Ingalls Wilder Medal: The Laura Ingalls Wilder Medal is a prize awarded by the American Library Association (ALA) to writers or illustrators of children's books published in the United States who have over a period of years made substantial and lasting contributions to children's literature. The bronze medal prize is named after its first winner, twentieth-century American author Laura Ingalls Wilder.
Document 7: The Giver Quartet: The Giver Quartet is a series of four young adult novels by Lois Lowry. The quartet consists of "The Giver" (1993), "Gathering Blue" (2000), "Messenger" (2004) and "Son" (2012). The first book won the 1994 Newbery Medal and has sold more than 10 million copies. The story takes place in the world of the Giver. Each book has a different protagonist, but is set in the same futuristic era.
Document 8: Messenger (novel): Messenger is a 2004 young adult fiction by author Lois Lowry. It forms the third installment of "The Giver Quartet" begun by her 1993 Newbery Medal-winning novel "The Giver". This novel takes place about eight years after the events of "The Giver", and about six years after the events of "Gathering Blue". Characters from the two earlier books reappear in "Messenger," connecting the novels more strongly. Set in an isolated community known simply as Village, this novel focuses upon a boy named Matty, who serves as message-bearer through the ominous Forest that surrounds the community.
Document 9: A Spool of Blue Thread: A Spool of Blue Thread, published in 2015, is Anne Tyler’s 20th novel.
Document 10: The Giver: The Giver is a 1993 American young adult dystopian novel by Lois Lowry. It is set in a society which at first appears to be utopian but is revealed to be dystopian as the story progresses. The novel follows a 12-year-old boy named Jonas. The society has eliminated pain and strife by converting to "Sameness", a plan that has also eradicated emotional depth from their lives. Jonas is selected to inherit the position of Receiver of Memory, the person who stores all the past memories of the time before Sameness, as there may be times where one must draw upon the wisdom gained from history to aid the community's decision making. Jonas struggles with concepts of all the new emotions and things introduced to him: whether they are inherently good, evil, or in between, and whether it is even possible to have one without the other. The Community lacks any color, memory, climate, or terrain, all in an effort to preserve structure, order, and a true sense of equality beyond personal individuality.
Document 11: Lois Lowry: Lois Lowry (born Lois Ann Hammersberg; March 20, 1937) is an American writer credited with more than thirty children's books. She has won two Newbery Medals, for "Number the Stars" in 1990 and "The Giver" in 1994. For her contribution as a children's writer, she was a finalist in 2000 and U.S. nominee again in 2004, as well as a finalist in 2016 for the biennial, international Hans Christian Andersen Award, the highest recognition available to creators of children's books. Her book "Gooney Bird Greene" won the 2002 Rhode Island Children's Book Award.
Document 12: Blue Genes: Blue Genes is the fifth story in the "Kate Brannigan Series" written by Val McDermid A popular Scottish author. The book was written in 1996 and has been advised that younger reader's do not read it as it has sexual responses and death.
Document 13: Gathering Blue: Gathering Blue is a young adult-social science novel, written by Lois Lowry and released in the year 2000. It is a companion book to "The Giver" (1993) being set in the same future time period and universe, treating some of the same themes, and is followed by "Messenger" (2004), and "Son" (2012) in "The Giver Quartet".
Document 14: The Blue Sword: The Blue Sword is a fantasy novel written by American author Robin McKinley and published by Greenwillow Books in 1982. The novel "The Hero and the Crown" serves as a prequel. "The Blue Sword" has received several awards, including: Newbery Honor Award, ALA Best Book for Young Adults and the ALA Notable Children's Book. The story, told in the third-person omniscient perspective, is of a young woman named Angharad Crewe, called Harry, who becomes a warrior in her adopted homeland of Damar.
Document 15: Lois Lenski: Lois Lenski Covey (October 14, 1893 – September 11, 1974) was a Newbery Medal-winning author and illustrator of picture books and children's literature. Beginning with the release in 1927 of her first books, "Skipping Village" and "Jack Horner's Pie: A Book of Nursery Rhymes", Lenski published 98 books, including several posthumous works. Her writings comprise children's picture books and illustrated chapter books, songbooks, poetry, short stories, an autobiography, "Journey into Childhood" (1972), and a number of essays about books and children's literature. Her best-known bodies of work include the "Mr. Small" series of picture books (1934–62); her "Historical" series of novels, including the Newbery Honor-winning "" (1936) and "" (1941); and her "Regional" series, including Newbery Medal-winning "Strawberry Girl" (1945) and Children's Book Award-winning "Judy's Journey" (1947).
ground_truth: Lois Lowry