Information: - Albanactus, according to Geoffrey of Monmouth, was the founding king of Albania or Albany. He is in effect Geoffrey's eponym for Scotland. His territory was that north of the River Humber. This myth was then taken up by Giraldus Cambrensis. - Maddan was a legendary king of the Britons as accounted by Geoffrey of Monmouth . He was the son of King Locrinus and Queen Gwendolen , who both ruled Britain separately . He was born during the reign of Locrinus but soon after , his grandfather Corineus of Cornwall died and his mother defeated Locrinus in battle . His mother reigned for the fifteen years of Maddan 's adolescence then she abdicated in his favor . Soon after taking the throne , he married and became the father of Mempricius and Malin . For forty years he reigned peacefully until his death when civil war broke out between his sons . - Gwendolen was a legendary queen of Britain, as told by Geoffrey of Monmouth in his pseudohistorical work "Historia Regum Britanniae" ("History of the Kings of Britain"). According to Geoffrey, she was the repudiated queen of King Locrinus until she defeated her husband in battle at the River Stour, the dividing line between Cornwall and Loegria, and took on the leadership of the Britons herself, becoming their first recorded queen regnant. Her victory and subsequent rise to fame as a righteous ruler shows how fractured Britain was at the time. - Locrinus was a legendary king of the Britons, as recounted by Geoffrey of Monmouth. He was the oldest son of Brutus and a descendant of the Trojans through Aeneas. Following Brutus's death, Britain was divided amongst the three sons, with Locrinus receiving the portion roughly equivalent to England, Albanactus receiving Scotland (Albany), and Kamber receiving Wales (Cymru). He ruled a portion of Britain called Loegria, named after him, which is roughly the boundaries of modern-day England. He reigned 10 years, most of which were peaceful. - Historia regum Britanniae ("The History of the Kings of Britain"), originally called De gestis Britonum ("On the Deeds of the Britons"), is a pseudohistorical account of British history, written around 1136 by Geoffrey of Monmouth. It chronicles the lives of the kings of the Britons over the course of two thousand years, beginning with the Trojans founding the British nation and continuing until the Anglo-Saxons assumed control of much of Britain around the 7th century. It is one of the central pieces of the Matter of Britain. - In Greco-Roman mythology, Aeneas (Greek: , "Aineias", possibly derived from Greek meaning "praised") was a Trojan hero, the son of the prince Anchises and the goddess Venus (Aphrodite). His father was a first cousin of King Priam of Troy (both being grandsons of Ilus, founder of Troy), making Aeneas a second cousin to Priam's children (such as Hector and Paris). He is a character in Greek mythology and is mentioned in Homer's "Iliad". Aeneas receives full treatment in Roman mythology, most extensively in Virgil's "Aeneid," where he is an ancestor of Romulus and Remus. He became the first true hero of Rome. Snorri Sturlason identifies him with the Norse sir Vidarr. Given the information above, choose from the list below the object entity that exhibits the relation 'present in work' with the subject 'maddan'. Choices: - greek mythology - historia regum britanniae - rome - taken
historia regum britanniae

Q: Information: - Snowboards are boards that are usually the width of one's foot longways, with the ability to glide on snow. Snowboards are differentiated from monoskis by the stance of the user. In monoskiing, the user stands with feet inline with direction of travel (facing tip of monoski/downhill) (parallel to long axis of board), whereas in snowboarding, users stand with feet transverse (more or less) to the longitude of the board. Users of such equipment may be referred to as "snowboarder"s. "Commercial snowboards" generally require extra equipment such as bindings and special boots which help secure both feet of a snowboarder, who generally rides in an upright position. These types of boards are commonly used by people at ski hills or resorts for leisure, entertainment, and competitive purposes in the activity called snowboarding. - Ski boots are footwear used in skiing to provide a way to attach the skier to skis using ski bindings. The ski/boot/binding combination is used to effectively transmit control inputs from the skier's legs to the snow. - Ski wax is a material applied to the bottom of snow runners , including skis , snowboards , and toboggans , to improve their coefficient of friction performance under varying snow conditions . The two main types of wax used on skis are glide waxes and grip waxes . They address kinetic friction -- to be minimized with a glide wax -- and static friction -- to be achieved with a grip wax . Both types of wax are designed to be matched with the varying properties of snow , including crystal type and size , and moisture content of the snow surface , which vary with temperature and the temperature history of the snow . Glide wax is selected to minimize sliding friction for both alpine and cross-country skiing . Grip wax ( also called '' kick wax '' ) provides on - snow traction for cross-country skiers , as they stride forward using classic technique . Modern plastic materials , e.g. high - modulus polyethylene and Teflon , used on ski bases have excellent gliding properties on snow , which in many circumstances diminish the added value of a glide wax . Likewise , uni-directional textures ( e.g. fish scale or micro-scale hairs ) underfoot on cross-country skis can offer a practical substitute for grip wax for those skiers , using the classic technique . - A ski is a narrow strip of semi-rigid material worn underfoot to glide over snow. Substantially longer than wide and characteristically employed in pairs, skis are attached to ski boots with ski bindings, with either a free, lockable, or partially secured heel. For climbing slopes, ski skins (originally made of seal fur, but now made of synthetic materials) can be attached at the base of the ski. - A ski binding is a device that connects a ski boot to the ski. Generally, it holds the boot firmly to allow the skier to maneuver the ski. However, if certain force limits are exceeded, it releases the boot to minimize skier injury, such as in the case of a fall or impact. There are different types of bindings for different types of skiing. Given the information above, choose from the list below the object entity that exhibits the relation 'sport' with the subject 'ski wax'. Choices: - climbing - skiing - snowboarding
A: snowboarding