dkoterwa/mlqa_filtered huggingface dataset:
Aqua regia is also used in etching and in specific analytic procedures. It is also used in some laboratories to clean glassware of organic compounds and metal particles. This method is preferred over the more traditional chromic acid bath for cleaning NMR tubes, because no traces of paramagnetic chromium can remain to spoil spectra. While chromic acid baths are discouraged because of the high toxicity of chromium and the potential for explosions, aqua regia is itself very corrosive and has been implicated in several explosions due to mishandling.Due to the reaction between its components resulting in its decomposition, aqua regia quickly loses its effectiveness (yet remains a strong acid), so its components are usually only mixed immediately before use.

Question: What type of procedures can you associate with Aqua regia
Answer: analytic procedures
At the end of 2004, May and Taylor announced that they would reunite and return to touring in 2005 with Paul Rodgers (founder and former lead singer of Free and Bad Company). Brian May's website also stated that Rodgers would be "featured with" Queen as "Queen + Paul Rodgers", not replacing Mercury. Deacon, who was retired, did not participate. In November 2004, Queen were among the inaugural inductees into the UK Music Hall of Fame, and the award ceremony was the first event at which Rodgers joined May and Taylor as vocalist.Between 2005 and 2006, Queen + Paul Rodgers embarked on a world tour, which was the first time Queen toured since their last tour with Freddie Mercury in 1986. Taylor said: "We never thought we would tour again, Paul came along by chance and we seemed to have a chemistry. Paul is just such a great singer. He's not trying to be Freddie." The first leg was in Europe, the second in Japan, and the third in the US in 2006. Queen received the inaugural VH1 Rock Honors at the Mandalay Bay Events Center in Las Vegas, Nevada, on 25 May 2006. Foo Fighters paid homage, performing "Tie Your Mother Down" to open the ceremony before being joined on stage by May, Taylor, and Rodgers, who played a selection of Queen hits.

Question: what was the employment status of Deacon?
Answer: retired
Queen are a British rock band formed in London in 1970. Their classic line-up was Freddie Mercury (lead vocals and piano), Brian May (lead guitar and vocals), Roger Taylor (drums and vocals) and John Deacon (bass guitar). Their earliest works were influenced by progressive rock, hard rock and heavy metal, but the band gradually ventured into more conventional and radio-friendly works by incorporating further styles, such as arena rock and pop rock.

Question: Where was the British rock band Queen formed?
Answer: London
During the Cretaceous period, a few species of primitive ants ranged widely on the Laurasian supercontinent (the Northern Hemisphere). They were scarce in comparison to the populations of other insects, representing only about 1% of the entire insect population. Ants became dominant after adaptive radiation at the beginning of the Paleogene period. By the Oligocene and Miocene, ants had come to represent 20–40% of all insects found in major fossil deposits. Of the species that lived in the Eocene epoch, around one in 10 genera survive to the present. Genera surviving today comprise 56% of the genera in Baltic amber fossils (early Oligocene), and 92% of the genera in Dominican amber fossils (apparently early Miocene).Termites live in colonies and are sometimes called ‘white ants’, but termites are not ants. They are the sub-order Isoptera, and together with cockroaches they form the order Blattodea. Blattodeans are related to mantids, crickets, and other winged insects that do not undergo full metamorphosis. Like ants, termites are eusocial, with sterile workers, but they differ greatly in the genetics of reproduction. The similarity of their social structure to that of ants is attributed to convergent evolution. Velvet ants look like large ants, but are wingless female wasps.

Question: when do ants become dominant?
Answer: after adaptive radiation
The family Formicidae belongs to the order Hymenoptera, which also includes sawflies, bees, and wasps. Ants evolved from a lineage within the stinging wasps, and a 2013 study suggests that they are a sister group of the Apoidea. In 1966, E. O. Wilson and his colleagues identified the fossil remains of an ant (Sphecomyrma) that lived in the Cretaceous period. The specimen, trapped in amber dating back to around 92 million years ago, has features found in some wasps, but not found in modern ants. Sphecomyrma was possibly a ground forager, while Haidomyrmex and Haidomyrmodes, related genera in subfamily Sphecomyrminae, are reconstructed as active arboreal predators. Older ants in the genus Sphecomyrmodes have been found in 99 million year-old amber from Myanmar. A 2006 study suggested that ants arose tens of millions of years earlier than previously thought, up to 168 million years ago. After the rise of flowering plants about 100 million years ago they diversified and assumed ecological dominance around 60 million years ago. Some groups, such as the Leptanillinae and Martialinae, are suggested to have diversified from early primitive ants that were likely to have been predators underneath the surface of the soil.

Question: What insects are found in the order which the family Formicidae is a part of?
Answer: sawflies, bees, and wasps
Laime was also the first to clear a trail that leads from the Churun River to the base of the falls. On the way is a viewpoint commonly used to capture the falls in photographs. It is named Mirador Laime ("Laime's Viewpoint" in Spanish) in his honor. This trail is used now mostly for tourists, to lead them from the Isla Ratón camp to the small clearing.

Question: The trail leads visitors to a small clearing from what camp?
Answer: Isla Ratón
Born  John Winston Lennon in Liverpool, he became involved in the skiffle craze as a teenager. In 1957, he formed his first band, the Quarrymen, which evolved into the Beatles in 1960. Further to his Plastic Ono Band singles such as "Give Peace a Chance" and "Instant Karma!", Lennon subsequently produced albums that included John Lennon/Plastic Ono Band and Imagine, and songs such as  "Working Class Hero", "Imagine" and "Happy Xmas (War Is Over)". After moving to New York City in 1971, he never returned to England again. In 1975, he disengaged himself from the music business to raise his infant son Sean, but re-emerged with Ono in 1980 with the album Double Fantasy. He was shot and killed in the archway of his Manhattan apartment building three weeks after the album's release.

Question: What was Lennon's first band?
Answer: Quarrymen
John Winston Ono Lennon  (9 October 1940 – 8 December 1980) was an English singer, songwriter and peace activist who co-founded the Beatles, the most commercially successful band in the history of popular music. He and fellow member Paul McCartney formed a much-celebrated songwriting partnership. Along with George Harrison and Ringo Starr, the group achieved worldwide fame during the 1960s. In 1969, Lennon started the Plastic Ono Band with his second wife, Yoko Ono, and he continued to pursue a solo career following the Beatles' break-up in April 1970.

Question: Who did he form a songwriting partnership with?
Answer: Paul McCartney
Lennon revealed a rebellious nature and acerbic wit in his music, writing, drawings, on film and in interviews. He was controversial through his political and peace activism. From 1971 onwards, his criticism of the Vietnam War resulted in a three-year attempt by the Nixon administration to deport him. Some of his songs were adopted as anthems by the anti-war movement and the larger counterculture.

Question: John Lennon's music appealed to what group during the Vietnam War?
Answer: anti-war movement and the larger counterculture.
Lennon was born on 9 October 1940 at Liverpool Maternity Hospital, to Julia (née Stanley) (1914–1958) and Alfred Lennon (1912–1976). Alfred was a merchant seaman of Irish descent who was away at the time of his son's birth. His parents named him John Winston Lennon after his paternal grandfather, John "Jack" Lennon, and Prime Minister Winston Churchill. His father was often away from home but sent regular pay cheques to 9 Newcastle Road, Liverpool, where Lennon lived with his mother; the cheques stopped when he went absent without leave in February 1944. When he eventually came home six months later, he offered to look after the family, but Julia, by then pregnant with another man's child, rejected the idea. After her sister Mimi complained to Liverpool's Social Services twice, Julia gave her custody of Lennon. In July 1946, Lennon's father visited her and took his son to Blackpool, secretly intending to emigrate to New Zealand with him. Julia followed them – with her partner at the time, Bobby Dykins – and after a heated argument, his father forced the five-year-old to choose between them. In one account of this incident, Lennon twice chose his father, but as his mother walked away, he began to cry and followed her. According to author Mark Lewisohn, however, Lennon's parents agreed that Julia should take him and give him a home. A witness who was there that day, Billy Hall, has said that the dramatic portrayal of a young John Lennon being forced to make a decision between his parents is inaccurate. Lennon had no further contact with Alf for close to 20 years.Throughout the rest of his childhood and adolescence, Lennon lived at Mendips, 251 Menlove Avenue, Woolton, with Mimi and her husband George Toogood Smith, who had no children of their own. His aunt purchased volumes of short stories for him, and his uncle, a dairyman at his family's farm, bought him a mouth organ and engaged him in solving crossword puzzles. Julia visited Mendips on a regular basis, and when John was 11 years old, he often visited her at 1 Blomfield Road, Liverpool, where she played him Elvis Presley records, taught him the banjo, and showed him how to play "Ain't That a Shame" by Fats Domino. In September 1980, Lennon commented about his family and his rebellious nature:

Question: Who did John Lennon parents named him after?
Answer: after his paternal grandfather, John "Jack" Lennon, and Prime Minister Winston Churchill

Question: Why did Julia reject John's offer to look after the family?
Answer: pregnant with another man's child

Question: Which parent did John Lennon choose when he was five years old?
Answer: his father

Question: What country did Lennon's father want to take him to?
Answer: New Zealand

Question: How long did Lennon go without speaking with Alf?
Answer: 20 years

Question: Who was Julia's partner?
Answer: Bobby Dykins
The Kola Superdeep Borehole (Russian: Кольская сверхглубокая скважина) is the result of a scientific drilling project of the Soviet Union in the Pechengsky District, on the Kola Peninsula. The project attempted to drill as deep as possible into the Earth's crust. Drilling began on 24 May 1970 using the Uralmash-4E, and later the Uralmash-15000 series drilling rig. Boreholes were drilled by branching from a central hole. The deepest, SG-3, reached 12,262 metres (40,230 ft; 7.619 mi) (Needs verification.  According to markings written on the borehole, the depth is 12,226 m, ) in 1989 and is the deepest artificial point on Earth, as of May 2019. The borehole is 23 centimetres (9 in) in diameter.In terms of true vertical depth, it is the deepest borehole in the world. For two decades it was also the world's longest borehole in terms of measured depth along the well bore, until it was surpassed in 2008 by the 12,289-metre-long (40,318 ft) Al Shaheen oil well in Qatar, and in 2011 by the 12,345-metre-long (40,502 ft) Sakhalin-I Odoptu OP-11 Well (offshore from the Russian island of Sakhalin).

Question: What was the date of start of the drilling?
Answer: 24 May 1970

Question: What is trying to drill into the earths crust now?
Answer: The Kola Superdeep Borehole
The meaning of "Kirirom" is "Happy Mountain". This name was given to the area by King Monivong in the 1930s. The ancient name of the place was Phnom Vorvong Sorvong for the main two hills there were connected with the Cambodian popular legend about two heroic princely brothers, Vorvong and Sorvong.

Question: when did the King name the area Kirirom?
Answer: 1930s
In January 2009, newly elected President Barack Obama nominated Panetta for the post of CIA Director. Panetta was confirmed by the full Senate in February 2009. As director of the CIA, Panetta oversaw the operation that brought down international terrorist Osama bin Laden. On April 28, 2011, Obama announced the nomination of Panetta as Defense Secretary, to replace the retiring Robert Gates. In June the Senate confirmed Panetta unanimously and he assumed the office on July 1, 2011. David Petraeus took over as Director of the Central Intelligence Agency on September 6, 2011.Since retiring as Secretary of Defense in 2013, Panetta has served as Chairman of The Panetta Institute for Public Policy, located at California State University, Monterey Bay, a campus of the California State University that he helped establish during his tenure as congressman. The Institute is dedicated to motivating and preparing people for lives of public service and helping them to become more knowledgeably engaged in the democratic process. He also serves on a number of boards and commissions and frequently writes and lectures on public policy issues.

Question: When was President Obama's nomination for CIA Director confirmed by the Senate?
Answer: February 2009

Question: When was Panetta offered the CIA Director position?
Answer: January 2009
George Michael (born Georgios Kyriacos Panayiotou; 25 June 1963 – 25 December 2016) was an English singer, songwriter, record producer, and philanthropist who rose to fame as a member of the music duo Wham! and later embarked on a solo career. Michael has sold over 115 million records worldwide making him one of the best-selling music artists of all time. He achieved seven number one songs on the UK Singles Chart and eight number one songs on the US Billboard Hot 100. He was widely known for his success in the 1980s and 1990s, including Wham! singles such as "Wake Me Up Before You Go-Go" and "Last Christmas" and solo singles such as "Careless Whisper" and "Faith".

Question: What year did Michael die?
Answer: 2016
Michael, who came out as gay in 1998, was an active LGBT rights campaigner and HIV/AIDS charity fundraiser. Michael's personal life and legal troubles made headlines during the late 1990s and 2000s, as he was arrested for public lewdness in 1998 and was arrested for multiple drug-related offenses after that time. The 2005 documentary A Different Story covered his career and personal life. Michael's first tour since 1991, the 25 Live tour, spanned three tours over the course of three years; 2006, 2007, and 2008. Six years later, he performed his final concert at London's Earls Court in 2012. In the early hours of 25 December 2016, Michael was found dead at his home in Goring-on-Thames, Oxfordshire aged 53. A coroner's report attributed his death to natural causes.

Question: In what years did Michael's 25 Live tour take place?
Answer: 2006, 2007, and 2008
T'Challa establishes an outreach center at the building where N'Jobu died, to be run by Nakia and Shuri. In a mid-credits scene, T'Challa appears before the United Nations to reveal Wakanda's true nature to the world. In a post-credits scene, Shuri helps Bucky Barnes with his recuperation.

Question: T'Challa represents what country in the United Nations?
Answer: Wakanda
At Port Royal, Jack is led to the gallows to be hanged for piracy. Elizabeth diverts Norrington's attention and Will attempts a rescue, but Jack and Will are surrounded and held at gunpoint. Elizabeth intercedes and declares her love for Will, leaving Norrington crestfallen. Governor Swann pardons Will and gives his blessing for Elizabeth to marry him. Jack dives into the sea and escapes aboard the nearby Black Pearl, finally reclaiming the ship. Norrington permits Jack and the Pearl "one day's head start" before initiating pursuit.

Question: Who gave will their blessing to marry elizabeth?
Answer: Governor Swann
Disney was unsure whether to release the film in theaters or direct-to-video. The studio was interested in Matthew McConaughey as Sparrow because of his resemblance to Burt Lancaster, who had inspired that script's interpretation of the character. If they chose to release it direct-to-video, Christopher Walken or Cary Elwes would have been their first choices.Stuart Beattie was brought in to rewrite the script in March 2002, because of his knowledge of piracy. When Dick Cook managed to convince producer Jerry Bruckheimer to join the project, he rejected the script because it was "a straight pirate movie." Later in March 2002, he brought Elliott and Rossio, who suggested making a supernatural curse – as described in the opening narration of the ride – the film's plot.In May 2002, Gore Verbinski signed on to direct Pirates of the Caribbean. He was attracted to the idea of using modern technology to resurrect a genre that had disappeared after the Golden Age of Hollywood and recalled his childhood memories of the ride, feeling the film was an opportunity to pay tribute to the "scary and funny" tone of it.Jim Carrey was considered for the part of Jack Sparrow. However, the production schedule for The Curse of the Black Pearl conflicted with Bruce Almighty. Others considered for the role include Michael Keaton and Christopher Walken. Although Cook had been a strong proponent of adapting Disney's rides into films, the box office failure of The Country Bears (2002) made Michael Eisner attempt to shut down production of Pirates of the Caribbean. However, Verbinski told his concept artists to keep working on the picture, and when Eisner came to visit, the executive was astonished by what had been created.

Question: What was Disney unsure about?
Answer: whether to release the film in theaters or direct-to-video
Johnny Depp as Jack Sparrow: An eccentric pirate characterized by his slightly drunken swagger, slurred speech and awkwardly flailing hand gestures. He has gained a reputation with made-up stories of how he escaped from the deserted island he was put on. He is determined to regain the Black Pearl, which he captained ten years before. The role was originally written especially for Hugh Jackman, thus the name "Jack Sparrow"; however, he was not well known outside of his native Australia, so Disney cast the more famous Depp as Jack. Depp found the script quirky: rather than trying to find treasure, the crew of the Black Pearl were trying to return it in order to lift their curse; also, the traditional mutiny had already taken place. Initially Sparrow was, according to Bruckheimer, "a young Burt Lancaster, just the cocky pirate." At the first read-through, Depp surprised the rest of the cast and crew by portraying the character in an off-kilter manner. After researching 18th-century pirates, Depp compared them to modern rock stars and decided to base his performance on Keith Richards. Although Verbinski and Bruckheimer had confidence in Depp, partly because it would be Bloom who was playing the traditional Errol Flynn-type, Disney executives were confused, asking Depp whether the character was drunk or gay, and Michael Eisner even proclaimed while watching rushes, "He's ruining the film!" Depp answered back, "Look, these are the choices I made. You know my work. So either trust me or give me the boot."

Question: How long ago did Jack Sparrow capture the black pearl?
Answer: ten years

Question: What rockstar did Depp base his pirate character on?
Answer: Keith Richards

Question: Who did Sparrow resemble?
Answer: a young Burt Lancaster

Question: Who did Disney cast for the role of Jack Sparrow?
Answer: Depp
Will frees Jack to rescue Elizabeth, whom Will loves. Jack, the original captain of the Black Pearl before Barbossa staged a mutiny, gets assistance from Will to reclaim his ship. The two commandeer HMS Interceptor, a small and very fast sloop-of-war, and head for Tortuga. There, Jack enlists Gibbs to help them put together a crew. At Isla de Muerta, Will and Jack witness Barbossa sacrificing Elizabeth's blood and the final gold piece. The curse is not lifted because Elizabeth does not carry the blood of Bootstrap Bill Turner. Bootstrap had been a crewmate of the Black Pearl before being thrown overboard by the crew for giving the medallion to Will. Will rescues Elizabeth and brings her to Interceptor, while Jack is captured by Barbossa and gets locked in the brig of the Pearl.

Question: Who loved Elizabeth
Answer: Will
Courtney Love and Cobain met on January 12, 1990, in Portland's Satyricon nightclub, when they both still led ardent underground rock bands. Love made advances, but Cobain was evasive. Early in their interactions, Cobain broke off dates and ignored Love's advances because he was unsure if he wanted a relationship. Cobain noted, "I was determined to be a bachelor for a few months [...] But I knew that I liked Courtney so much right away that it was a really hard struggle to stay away from her for so many months." Love first saw Cobain perform in 1989 at a show in Portland, Oregon. They talked briefly after the show and Love developed a crush on him.Cobain was already aware of Love through her role in the 1987 film Straight to Hell. According to True, the pair were formally introduced at an L7 and Butthole Surfers concert in Los Angeles in May 1991. In the weeks that followed, after learning from Grohl that Cobain shared mutual interests with her, Love began pursuing Cobain. In late 1991, the two were often together and bonded through drug use.On February 24, 1992, a few days after the conclusion of Nirvana's "Pacific Rim" tour, Cobain and Love were married on Waikiki Beach in Hawaii. Love wore a satin and lace dress once owned by Frances Farmer, and Cobain donned a Guatemalan purse and wore green pajamas, because he had been "too lazy to put on a tux." Eight people were in attendance at the ceremony, including Grohl.In an interview with The Guardian, Love revealed the opposition to their marriage from various people:

Question: Where did Courtney Love first see Cobain play?
Answer: Portland
During high school, Cobain rarely found anyone with whom he could play music. While hanging out at the Melvins' practice space, he met Krist Novoselic, a fellow devotee of punk rock. Novoselic's mother owned a hair salon, and the pair occasionally practiced in the upstairs room of the salon. A few years later, Cobain tried to convince Novoselic to form a band with him by lending him a copy of a home demo recorded by Cobain's earlier band, Fecal Matter.

Question: Who did Cobain meet?
Answer: Krist Novoselic

Question: Cobain and Krist practiced in which type of business?
Answer: hair salon