instruction:
In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.
question:
Passage: Suffocation was formed in 1988 on Long Island, New York, by vocalist Frank Mullen, guitarists Guy Marchais and Todd German, bassist Josh Barohn, and an unknown drummer. By 1990, the band had hired guitarists Terrance Hobbs and Doug Cerrito along with drummer Mike Smith, who were members of a local band called Mortuary, which had already disbanded. The quintet was mainly influenced by fellow American death metal bands as well as the British band Napalm Death and Brazilian Sepultura. Smith commented on meeting Hobbs for the first time: "That's where I first noticed, 'Wow, theres another black guy playing this kind of stuff'". The band's first EP, Human Waste, was released through Relapse Records in 1991. The full-length debut album, Effigy of the Forgotten, recorded by producer Scott Burns at Tampa's Morrisound Studios and released by Roadrunner Records the same year. In July 1991, Barohn was replaced by Chris Richards, as the album became substantially influential in extreme metal music.
 Link Information: none Answer: none
answer:
Did the vocalist for Suffocation ever get married?


question:
Passage: The Anzac class originated from RAN plans to replace the six River-class destroyer escorts with a mid-capability patrol frigate. The Australian shipbuilding industry was thought to be incapable of warship design, so the RAN decided to take a proven foreign design and modify it. Around the same time, the Royal New Zealand Navy (RNZN) was looking to replace four Leander-class frigates; a deterioration in New Zealand-United States relations, the need to improve alliances with nearby nations, and the commonalities between the RAN and RNZN ships' requirements led the two nations to begin collaborating on the acquisition in 1987. Tenders were requested by the Anzac Ship Project at the end of 1986, with 12 ship designs (including an airship) submitted. By August 1987, the tenders were narrowed down in October to Blohm + Voss's MEKO 200 design, the M class (later Karel Doorman class) offered by Royal Schelde, and a scaled-down Type 23 frigate proposed by Yarrow Shipbuilders. In 1989, the Australian government announced that Melbourne-based shipbuilder AMECON (which became Tenix Defense) would build the modified MEKO 200 design. The Australians ordered eight ships, while New Zealand ordered two, with an unexercised option for two more.
 Link Information: none Answer: none
answer:
What other ships had Yarrow Shipbuilders completed the year they submitted a tender for the Anzac Ship Project?


question:
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 Answer: 570000
answer:

What is the area in meters of the sea that is adjacent to the Crag Group?