Extract the answer to the question from the following context. Question: What helps the River Ribble form a gap? Context: To the east of the county are upland areas leading to the Pennines. North of the Ribble is Beacon Fell Country Park and the Forest of Bowland, another AONB. Much of the lowland in this area is devoted to dairy farming and cheesemaking, whereas the higher ground is more suitable for sheep, and the highest ground is uncultivated moorland. The valleys of the River Ribble and its tributary the Calder form a large gap to the west of the Pennines, overlooked by Pendle Hill. Most of the larger Lancashire towns are in these valleys South of the Ribble are the West Pennine Moors and the Forest of Rossendale where former cotton mill towns are in deep valleys. The Lancashire Coalfield, largely in modern-day Greater Manchester, extended into Merseyside and to Ormskirk, Chorley, Burnley and Colne in Lancashire.
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Answer: its tributary the Calder

Extract the answer to the question from the following context. Question: How did the samurai wife learn how to wield a weapon? Context: Maintaining the household was the main duty of samurai women. This was especially crucial during early feudal Japan, when warrior husbands were often traveling abroad or engaged in clan battles. The wife, or okugatasama (meaning: one who remains in the home), was left to manage all household affairs, care for the children, and perhaps even defend the home forcibly. For this reason, many women of the samurai class were trained in wielding a polearm called a naginata or a special knife called the kaiken in an art called tantojutsu (lit. the skill of the knife), which they could use to protect their household, family, and honor if the need arose.
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Answer: trained

Extract the answer to the question from the following context. Question: When did an alumni graduate that won a lot of money with his smarts? Context: In literature and journalism, BYU has produced several best-selling authors, including Orson Scott Card '75, Brandon Sanderson '00 & '05, Ben English '98, and Stephenie Meyer '95. BYU also graduated American activist and contributor for ABC News Elizabeth Smart-Gilmour. Other media personalities include former CBS News correspondent Art Rascon, award-winning ESPN sportscaster and former Miss America Sharlene Wells Hawkes '86 and former co-host of CBS's The Early Show Jane Clayson Johnson '90. In entertainment and television, BYU is represented by Jon Heder '02 (best known for his role as Napoleon Dynamite), writer-director Daryn Tufts '98, Golden Globe-nominated Aaron Eckhart '94, animator and filmmaker Don Bluth '54, Jeopardy! all-time champion Ken Jennings '00, and Richard Dutcher, the "Father of Mormon Cinema." In the music industry BYU is represented by lead singer of the Grammy Award winning band Imagine Dragons Dan Reynolds, multi-platinum selling drummer Elaine Bradley from the band Neon Trees, crossover dubstep violinist Lindsey Stirling, former American Idol contestant Carmen Rasmusen, Mormon Tabernacle Choir director Mack Wilberg and pianist Massimiliano Frani.
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Answer:
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