In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Q: Passage: The Crag Group is a geological group outcropping in East Anglia, UK and adjacent areas of the North Sea. Its age ranges from approximately 4.4 to 0.478 million years BP, spanning the late Pliocene and early to middle Pleistocene epochs. It comprises a range of marine and estuarine sands, gravels, silts and clays deposited in a relatively shallow-water, tidally-dominated marine embayment on the western margins of the North Sea basin. The sands are characteristically dark green from glauconite but weather bright orange, with haematite 'iron pans' forming. The lithology of the lower part of the Group is almost entirely flint. The highest formation in the Group, the Wroxham Crag, contains over 10% of far-travelled lithologies, notably quartzite and vein quartz from the Midlands, igneous rocks from Wales, and chert from the Upper Greensand of southeastern England. This exotic rock component was introduced by rivers such as the Bytham River and Proto-Thames. 
 Link Information: The North Sea is a marginal sea of the Atlantic Ocean located between Great Britain (particularly England and Scotland), Denmark, Norway, Germany, the Netherlands, Belgium and France. An epeiric (or "shelf") sea on the European continental shelf, it connects to the ocean through the English Channel in the south and the Norwegian Sea in the north. It is more than 970 km long and 580 km wide, with an area of 570000 km2 Question: What is the area in meters of the sea that is adjacent to the Crag Group?

A: Answer: 570000
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Q: Passage: Born on 25 June 1884 in South Kensington, England, the eldest child of Henry Neville Custance and Alice Georgina, née Custance. His grandfather was Admiral Sir Reginald Custance. He joined the Royal Navy on 15 January 1899 as a cadet. He was rated midshipman on 15 May 1900 and served aboard HMS Ocean. Promoted to sub-lieutenant on 15 July 1903 he served aboard HMS Foam in the Mediterranean Station between 1904–1905. He served upon HMS Venerable in 1905 and promoted to lieutenant on 15 January 1905. He was the Gunnery Officer aboard HMS Vanguard between 1913–1917, and was having dinner aboard another ship at Scapa Flow in 1917 when HMS Vanguard suffered an internal explosion and sank with the loss of lives of 843 men. He served aboard HMS Vanguard during World War I and was present during the battle of Jutland in 1916.
 Link Information: His grandfather was Admiral Question: What is the age difference between Wilfred and his grandfather?

A: Answer: 37
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Q: Passage: His notable film appearances include The Great Debaters and Training Day, as well as TV shows ER, Brothers & Sisters and The War At Home. He was a cast member during the tenth and final season of the Nickelodeon sketch-comedy series All That. He was in the Disney Channel Original Movie, Dadnapped. He also appeared on The Suite Life of Zack & Cody, as a player on Zack and Cody's wheelchair basketball team, and in Werner Herzog's . He also appeared in the 2010 Wes Craven horror film My Soul To Take as a blind 16 year old named Jerome that was born early along with 6 other children because of the killing of a murderer that had multiple souls, and the souls escaped and were hiding in the children. He appeared in the 2011 film Abduction, in season 3 of The Boondocks as character Sgt. Gutte, and on Black Dynamite: The Animated Series as Donald The Accountant. Whitaker appeared as a young Zuri in the 2018 film Black Panther.
 Link Information: Abduction (2011 film) Question: How many years were between his roles in Abduction and Dlack Dynamite: The Animated Series?

A:
Answer: 0
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