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'.

Passage: In 1982, Dome built the RC82 as their first effort in the new Group C category of sports car racing. The chassis was built by March Engineering, whilst the engine was a 3.3-litre Cosworth DFL V8 engine. Dome, with sponsorship from Amada, debuted the car at the 1982 6 Hours of Silverstone, and selected Chris Craft, Raul Boesel and Eliseo Salazar to drive it. It would not prove to be a successful debut, as the car succumbed to fuel pressure issues after 116 laps. Dome then entered Craft and Salazar at the 24 Hours of Le Mans, but the suspension mounting failed after 85 laps, and the team were forced to retire. The RC82 was not used again until the 1983 24 Hours of Le Mans; Nick Mason joined the team, but the car lasted 75 laps before succumbing to clutch failure. Following the race, the RC83 made its debut in the 1000 km of Fuji, with the factory phasing out the RC82.
Link Information: Group C was a category of motorsport, introduced by the FIA in 1982 Question: When was the Group C category started?
Answer: 1982

Passage: In the 1970s, astronomers saw some major advances in astronomical imaging technology, beginning with Antoine Labeyrie's invention of speckle interferometry, a process that significantly reduced the blurring effect caused by astronomical seeing. It increased the optical resolution of ground-based telescopes, allowing for more precise measurements of Betelgeuse's photosphere. With improvements in infrared telescopy atop Mount Wilson, Mount Locke and Mauna Kea in Hawaii, astrophysicists began peering into the complex circumstellar shells surrounding the supergiant, causing them to suspect the presence of huge gas bubbles resulting from convection. But it was not until the late 1980s and early 1990s, when Betelgeuse became a regular target for aperture masking interferometry, that breakthroughs occurred in visible-light and infrared imaging. Pioneered by John E. Baldwin and colleagues of the Cavendish Astrophysics Group, the new technique employed a small mask with several holes in the telescope pupil plane, converting the aperture into an ad-hoc interferometric array. The technique contributed some of the most accurate measurements of Betelgeuse while revealing bright spots on the star's photosphere. These were the first optical and infrared images of a stellar disk other than the Sun, taken first from ground-based interferometers and later from higher-resolution observations of the COAST telescope. The "bright patches" or "hotspots" observed with these instruments appeared to corroborate a theory put forth by Schwarzschild decades earlier of massive convection cells dominating the stellar surface.
Link Information: none Question: When was the technology used at Mount Wilson, Mount Locke, and Mauna Kea invented?
Answer: none

Passage: Labor won the 1920 election with a majority of one and Storey became Premier. His thin majority, combined with a substantial minority in Legislative Council (made up of life appointees) and attacks of nephritis made his job hard. His private secretary at this time was V. Gordon Childe, later internationally famous in the field of archaeology, who wrote the book How Labor Governs, based on his experience as Storey's secretary. In June 1920, he appointed Judge Norman Ewing to carry out a royal commission in to the imprisonment of twelve IWW members in 1916 for treason, arson, sedition and forgery. On Ewing's recommendation, ten were released in August. In early 1921, he prorogued Parliament to prevent his Government being overthrown during a six months absence to visit financiers and a Harley Street doctor in London. Despite the warnings of his doctor, he undertook heavy work in London and on his return to Sydney in July.
Link Information: Vere Gordon Childe (14 April 1892 19 October 1957) was an Australian archaeologist who specialised in the study of European prehistory. He spent most of his life in the United Kingdom, working as an academic for the University of Edinburgh and then the Institute of Archaeology, London, and wrote twenty-six books during his career Question: How many books did V. Gordon Childe write?
Answer: twenty-six