Please answer the following question: Information: - The Lay of Leithian is an unfinished poem written by J. R. R. Tolkien. It tells the Tale of Beren and Luthien, the story of the love of the mortal Man Beren and the immortal Elf maiden Luthien. The poem consists of over 4200 verses. It was published after Tolkien's death in "The Lays of Beleriand". Its precedents are found in the Welsh tale of Culhwch and Olwen in the manuscripts, the Red Book of Hergest and the earlier White Book of Rhydderch. - John Ronald Reuel Tolkien, (3 January 1892 2 September 1973), known by his pen name J. R. R. Tolkien, was an English writer, poet, philologist, and university professor who is best known as the author of the classic high-fantasy works "The Hobbit", "The Lord of the Rings", and "The Silmarillion". - The Red Book of Hergest (Jesus College, Oxford, MS 111) is a large vellum manuscript written shortly after 1382, which ranks as one of the most important medieval manuscripts written in the Welsh language. It preserves a collection of Welsh prose and poetry, notably the tales of the "Mabinogion" and Gogynfeirdd poetry. The manuscript derives its name from the colour of its leather binding and from its association with Hergest Court between the late 15th and early 17th century. - The White Book of Rhydderch (Welsh: "Llyfr Gwyn Rhydderch", National Library of Wales, Peniarth MS 4-5) is one of the most notable and celebrated surviving manuscripts in Welsh. Mostly written in southwest Wales in the middle of the 14th century (c. 1350) it is the earliest collection of Welsh prose texts, though it also contains some examples of early Welsh poetry. It is now part of the collection of the National Library of Wales, having been preserved in the library at Hengwrt, near Dolgellau, Gwynedd, of the 17th century antiquary Robert Vaughan, who inherited it from the calligrapher John Jones and passed it to his descendants. The collection later passed to the newly established National Library of Wales as the Peniarth or Hengwrt-Peniarth Manuscripts. - Earth, otherwise known as the world, is the third planet from the Sun and the only object in the Universe known to harbor life. It is the densest planet in the Solar System and the largest of the four terrestrial planets. - Midgard (an anglicised form of Old Norse ; Old English , Swedish/Danish "Midgard", Old Saxon , Old High German , Gothic "Midjun-gards"; literally "middle yard") is the name for Earth (in the sense of oikoumene) inhabited by and known to humans in early Germanic cosmology, and specifically one of the Nine Worlds in Norse mythology. - Middle-earth is the setting of much of J. R. R. Tolkien's legendarium. The term is equivalent to the term "Midgard" of Norse mythology, describing the human-inhabited world, i.e. the central continent of the Earth in Tolkien's imagined mythological past. Tolkien's most widely read works, "The Hobbit" and "The Lord of the Rings", take place entirely in Middle-earth, and "Middle-earth" has also become a short-hand to refer to the legendarium or its "fictional universe". - Hobbits are a fictional, diminutive, humanoid race who inhabit the lands of Middle-earth in J. R. R. Tolkiens fiction. They are also referred to as Halflings. - The Lord of the Rings is an epic high-fantasy novel written by English author J. R. R. Tolkien. The story began as a sequel to Tolkien's 1937 fantasy novel "The Hobbit", but eventually developed into a much larger work. Written in stages between 1937 and 1949, "The Lord of the Rings" is one of the best-selling novels ever written, with over 150 million copies sold. - Luthien Tinuviel (Y.T. 1200Y.S. 503; died aged 3377) is a fictional character in the fantasy-world Middle-earth of the English author J. R. R. Tolkien. She is an elf, daughter of Thingol and Melian. She appears in "The Silmarillion", the epic poem "The Lay of Leithian", the Grey Annals section of "The War of the Jewels", and in other texts in Tolkien's legendarium. Her story is told to Frodo by Aragorn in "The Lord of the Rings". - The Lays of Beleriand, published in 1985, is the third volume of Christopher Tolkien's 12-volume book series, "The History of Middle-earth", in which he analyzes the unpublished manuscripts of his father J. R. R. Tolkien. - The Hobbit, or There and Back Again is a children's fantasy novel by English author J. R. R. Tolkien. It was published on 21 September 1937 to wide critical acclaim, being nominated for the Carnegie Medal and awarded a prize from the "New York Herald Tribune" for best juvenile fiction. The book remains popular and is recognized as a classic in children's literature. - Tolkien's Legendarium (ISBN 0-313-30530-7) is a collection of scholarly essays edited by Verlyn Flieger and Carl F. Hostetter on the History of Middle-earth series of books relating to the fiction of J.R.R.Tolkien, compiled and edited by his son, Christopher Tolkien. It was published by Greenwood Press in 2000. - Culhwch and Olwen is a Welsh tale that survives in only two manuscripts about a hero connected with Arthur and his warriors: a complete version in the Red Book of Hergest, ca. 1400, and a fragmented version in the White Book of Rhydderch, ca. 1325. It is the longest of the surviving Welsh prose tales. Certain linguistic evidence indicates it took its present form by the 11th century, making it perhaps the earliest Arthurian tale and one of Wales' earliest extant prose texts. The title is a later invention and does not occur in early manuscripts. - The Tale of Beren and Luthien is the story of the love and adventures of the mortal Man Beren and the immortal Elf-maiden Luthien, as told in several works of J. R. R. Tolkien. It takes place during the First Age of Middle-earth, about 6500 years before the events of his most famous book, "The Lord of the Rings". Tolkien wrote several versions of their story, the latest written in "The Silmarillion". Beren and Luthien are also mentioned in "The Lord of the Rings". - The Silmarils (Quenya pl. Silmarilli, "radiance of pure light") are three fictional brilliant jewels composed of the unmarred light of the Two Trees in J. R. R. Tolkien's legendarium. The Silmarils were made out of the crystalline substance "silima" by Feanor, a Noldorin Elf, in Valinor during the Years of the Trees. The Silmarils play a central role in Tolkien's book "The Silmarillion", which tells of the creation of Ea (the Universe) and the beginning of Elves, Men, and Dwarves. - A fictional universe is a self-consistent imaginary setting with events, and often other elements, that differ from the real world. It may also be called an imagined, constructed or fictional realm (or world). Fictional universes may appear in novels, comics, films, television shows, video games and other creative works. - Finrod Felagund ( IPA : ( finrod felaund ) is a fictional character in the fantasy - world Middle - earth of the English author J. R. R. Tolkien . He appears in The Silmarillion , the epic poem The Lay of Leithian and the Grey Annals , as well as other material . - Beren (also known as Beren Erchamion, "the One-handed", and Beren Camlost, "the Empty-handed") is a fictional character in J. R. R. Tolkien's Middle-earth legendarium. He appears in "The Silmarillion". He is a human, and his love for the elf maiden Luthien is central to the Tolkien legendarium. Character overview. He was the son of Emeldir and Barahir, a Man of the royal House of Beor of Dorthonion. His romance with the first-born is one of the great stories of the Elder Days. - A pen name ("nom de plume", or "literary double") is a pseudonym (or, in some cases, a variant form of a real name) adopted by an author and printed on the title page or by-line of his or her works in place of their "real" name. A pen name may be used to make the author's name more distinctive, to disguise his or her gender, to distance an author from some or all of his or her previous works, to protect the author from retribution for his or her writings, to combine more than one author into a single author, or for any of a number of reasons related to the marketing or aesthetic presentation of the work. The author's name may be known only to the publisher, or may come to be common knowledge. - Mythology refers variously to the collected myths of a group of people or to the study of such myths. Myths are the stories people tell to explain nature, history and customs. - Norse mythology is the body of mythology of the North Germanic people stemming from Norse paganism and continuing after the Christianization of Scandinavia and into the Scandinavian folklore of the modern period. The northernmost extension of Germanic mythology, Norse mythology consists of tales of various deities, beings, and heroes derived from numerous sources from both before and after the pagan period, including medieval manuscripts, archaeological representations, and folk tradition. What entity does 'finrod felagund' has the relation 'instance of' with?
A:
elf