shayekh/openrag_bench huggingface dataset:
Question: What was the population density of Tammy Leitner's city of birth in 2009?

Knowledge 1: Tammy Leitner
Tamara Leitner (born July 3, 1972 in San Diego, California) is an investigative TV reporter and former reality television contestant. [SEP] Knowledge 2: San Diego
As of the Census of 2010, there were 1,307,402 people living in the city of San Diego. That represents a population increase of just under 7% from the 1,223,400 people, 450,691 households, and 271,315 families reported in 2000. The estimated city population in 2009 was 1,306,300. The population density was 3,771.9 people per square mile (1,456.4/km2). The racial makeup of San Diego was 45.1% White, 6.7% African American, 0.6% Native American, 15.9% Asian (5.9% Filipino, 2.7% Chinese, 2.5% Vietnamese, 1.3% Indian, 1.0% Korean, 0.7% Japanese, 0.4% Laotian, 0.3% Cambodian, 0.1% Thai). 0.5% Pacific Islander (0.2% Guamanian, 0.1% Samoan, 0.1% Native Hawaiian), 12.3% from other races, and 5.1% from two or more races. The ethnic makeup of the city was 28.8% Hispanic or Latino (of any race); 24.9% of the total population were Mexican American, and 0.6% were Puerto Rican.
Knowledge 1: Leitner system
The Leitner system is a widely used method of efficiently using flashcards that was proposed by the German science journalist Sebastian Leitner in the 1970s. It is a simple implementation of the principle of spaced repetition, where cards are reviewed at increasing intervals. [SEP] Knowledge 2: Fontanelle, Iowa
As of the census of 2010, there were 672 people, 304 households, and 164 families residing in the city. The population density was 700.0 inhabitants per square mile (270.3/km2). There were 336 housing units at an average density of 350.0 per square mile (135.1/km2). The racial makeup of the city was 99.7% White, 0.1% from other races, and 0.1% from two or more races. Hispanic or Latino of any race were 0.6% of the population.
Knowledge 1: Leitner system
The Leitner system is a widely used method of efficiently using flashcards that was proposed by the German science journalist Sebastian Leitner in the 1970s. It is a simple implementation of the principle of spaced repetition, where cards are reviewed at increasing intervals. [SEP] Knowledge 2: Elk Point, South Dakota
As of the census of 2010, there were 1,963 people, 770 households, and 505 families residing in the city. The population density was 1,443.4 inhabitants per square mile (557.3/km2). There were 830 housing units at an average density of 610.3 per square mile (235.6/km2). The racial makeup of the city was 97.0% White, 0.3% African American, 0.6% Native American, 0.2% Asian, 0.8% from other races, and 1.2% from two or more races. Hispanic or Latino of any race were 1.5% of the population.

Answer: 3,771.9 people per square mile (1,456.4/km2)
Question: Who became the president of Frederic Chopin's original country in 1990?

Knowledge 1: Frédéric Chopin
Frédéric François Chopin (/ˈʃoʊpæn/; French pronunciation: ​[fʁe.de.ʁik fʁɑ̃.swa ʃɔ.pɛ̃]; 22 February or 1 March 1810 – 17 October 1849), born Fryderyk Franciszek Chopin,[n 1] was a Polish and French (by citizenship and birth of father) composer and a virtuoso pianist of the Romantic era, who wrote primarily for the solo piano. He gained and has maintained renown worldwide as one of the leading musicians of his era, whose "poetic genius was based on a professional technique that was without equal in his generation." Chopin was born in what was then the Duchy of Warsaw, and grew up in Warsaw, which after 1815 became part of Congress Poland. A child prodigy, he completed his musical education and composed his earlier works in Warsaw before leaving Poland at the age of 20, less than a month before the outbreak of the November 1830 Uprising. [SEP] Knowledge 2: 1990 Polish presidential election
The leader of the Solidarity movement, Lech Wałęsa, won the first round. However, he did not earn over 50% of the vote, which led to a runoff election. Wałęsa faced Polish - Canadian businessman Stanisław Tymiński in the second round, defeating him easily.
Knowledge 1: Frédéric Chopin
Chopin's music remains very popular and is regularly performed, recorded and broadcast worldwide. The world's oldest monographic music competition, the International Chopin Piano Competition, founded in 1927, is held every five years in Warsaw. The Fryderyk Chopin Institute of Poland lists on its website over eighty societies world-wide devoted to the composer and his music. The Institute site also lists nearly 1,500 performances of Chopin works on YouTube as of January 2014. [SEP] Knowledge 2: 1990 Polish presidential election
The leader of the Solidarity movement, Lech Wałęsa, won the first round. However, he did not earn over 50% of the vote, which led to a runoff election. Wałęsa faced Polish - Canadian businessman Stanisław Tymiński in the second round, defeating him easily.
Knowledge 1: Frédéric Chopin
Chopin's tombstone, featuring the muse of music, Euterpe, weeping over a broken lyre, was designed and sculpted by Clésinger. The expenses of the funeral and monument, amounting to 5,000 francs, were covered by Jane Stirling, who also paid for the return of the composer's sister Ludwika to Warsaw. Ludwika took Chopin's heart in an urn, preserved in alcohol, back to Poland in 1850.[n 9] She also took a collection of two hundred letters from Sand to Chopin; after 1851 these were returned to Sand, who seems to have destroyed them. [SEP] Knowledge 2: 1990 Polish presidential election
The leader of the Solidarity movement, Lech Wałęsa, won the first round. However, he did not earn over 50% of the vote, which led to a runoff election. Wałęsa faced Polish - Canadian businessman Stanisław Tymiński in the second round, defeating him easily.

Answer: Lech Wałęsa
Question: What is the population in 2010 of they city popular with tourists?

Knowledge 1: Nanjing
Instead, Nanjing, as a popular tourist destination, hosts a series of government-organised events throughout the year. The annual International Plum Blossom Festival held in Plum Blossom Hill, the largest plum collection in China, attracts thousands of tourists both domestically and internationally. Other events include Nanjing Baima Peach Blossom and Kite Festival, Jiangxin Zhou Fruit Festival and Linggu Temple Sweet Osmanthus Festival. [SEP] Knowledge 2: Nanjing
According to the Sixth China Census, the total population of the City of Nanjing reached 8.005 million in 2010. The statistics in 2011 estimated the total population to be 8.11 million. The birth rate was 8.86 percent and the death rate was 6.88 percent. The urban area had a population of 6.47 million people. The sex ratio of the city population was 107.31 males to 100 females.
Knowledge 1: Nanjing
Instead, Nanjing, as a popular tourist destination, hosts a series of government-organised events throughout the year. The annual International Plum Blossom Festival held in Plum Blossom Hill, the largest plum collection in China, attracts thousands of tourists both domestically and internationally. Other events include Nanjing Baima Peach Blossom and Kite Festival, Jiangxin Zhou Fruit Festival and Linggu Temple Sweet Osmanthus Festival. [SEP] Knowledge 2: Oklahoma, Clearfield County, Pennsylvania
Oklahoma is a census-designated place located in Sandy Township, Clearfield County, in the state of Pennsylvania. As of the 2010 census the population was 782. It is bordered to the northwest by the city of DuBois.
Knowledge 1: Atlantic City, New Jersey
By 1878, because of the growing popularity of the city, one railroad line could no longer keep up with demand. Soon, the Philadelphia and Atlantic City Railway was also constructed to transport tourists to Atlantic City. At this point massive hotels like The United States and Surf House, as well as smaller rooming houses, had sprung up all over town. The United States Hotel took up a full city block between Atlantic, Pacific, Delaware, and Maryland Avenues. These hotels were not only impressive in size, but featured the most updated amenities, and were considered quite luxurious for their time. [SEP] Knowledge 2: Nanjing
According to the Sixth China Census, the total population of the City of Nanjing reached 8.005 million in 2010. The statistics in 2011 estimated the total population to be 8.11 million. The birth rate was 8.86 percent and the death rate was 6.88 percent. The urban area had a population of 6.47 million people. The sex ratio of the city population was 107.31 males to 100 females.

Answer: 8.005 million
Question: Who is the mayor presiding now where Merrill Elam was born?

Knowledge 1: Merrill Elam
Merrill Elam is an American architect and educator based in Atlanta, Georgia. She is a principal with Mack Scogin in Mack Scogin Merrill Elam Architects where their work spans between buildings, interiors, planning, graphics and exhibition design, and research. [SEP] Knowledge 2: 2017 Atlanta mayoral election
The election was first certified on December 11, 2017, and showed Bottoms remain in the lead with 46,667, or 50.45 percent, and Norwood had 45,835, or 49.55 percent thus increasing her lead to 832 while still remaining below the 1 percent threshold needed to avoid a recount. The recount, which occurred on December 14, 2017, showed that Norwood picked up five votes and Bottoms lost six in Fulton County, while DeKalb County remained the same. The election was re-certified on December 17, 2017 after Fulton County accepted the new results. Norwood officially conceded the race to Lance Bottoms on December 21, 2017. Lance Bottoms was sworn in as the 60th Mayor of Atlanta, GA on January 2, 2018.
Knowledge 1: Merrill Elam
Merrill Elam is an American architect and educator based in Atlanta, Georgia. She is a principal with Mack Scogin in Mack Scogin Merrill Elam Architects where their work spans between buildings, interiors, planning, graphics and exhibition design, and research. [SEP] Knowledge 2: Rusty Paul
Rusty Paul is the American mayor of Sandy Springs, Georgia, United States. Previously a Sandy Springs city councilman, Paul was elected to succeed Eva Galambos in November 2013. He was sworn in as the city's second Mayor on January 7, 2014.
Knowledge 1: 2017 Atlanta mayoral election
The election was first certified on December 11, 2017, and showed Bottoms remain in the lead with 46,667, or 50.45 percent, and Norwood had 45,835, or 49.55 percent thus increasing her lead to 832 while still remaining below the 1 percent threshold needed to avoid a recount. The recount, which occurred on December 14, 2017, showed that Norwood picked up five votes and Bottoms lost six in Fulton County, while DeKalb County remained the same. The election was re-certified on December 17, 2017 after Fulton County accepted the new results. Norwood officially conceded the race to Lance Bottoms on December 21, 2017. Lance Bottoms was sworn in as the 60th Mayor of Atlanta, GA on January 2, 2018. [SEP] Knowledge 2: Houston
The city of Houston has a strong mayoral form of municipal government. Houston is a home rule city and all municipal elections in the state of Texas are nonpartisan. The City's elected officials are the mayor, city controller and 16 members of the Houston City Council. The current mayor of Houston is Sylvester Turner, a Democrat elected on a nonpartisan ballot. Houston's mayor serves as the city's chief administrator, executive officer, and official representative, and is responsible for the general management of the city and for seeing that all laws and ordinances are enforced.

Answer: Lance Bottoms
Question: Why does the place where Step Up Revolution takes place have a duck for a mascot?

Knowledge 1: Step Up Revolution
Step Up Revolution (also known as Step Up 4: Miami Heat, and previously titled Step Up 4Ever) is a 2012 American 3D dance film and the fourth installment in the "Step Up" film series. It was released on July 27, 2012. The film was directed by Scott Speer and stars Ryan Guzman and Kathryn McCormick, the latter from the sixth season of "So You Think You Can Dance". The film features choreography by Jamal Sims, Christopher Scott, Chuck Maldonado and Travis Wall. The production design was created by Carlos A. Menendez. Unlike the first three films, produced by Touchstone Pictures and distributed by Walt Disney Studios Motion Pictures, this film was produced by Summit Entertainment and Offspring Entertainment without Disney's involvement and distributed by Lionsgate. This is also the first Summit Entertainment film after being acquired by Lionsgate in January 2012. [SEP] Knowledge 2: Sebastian the Ibis
The ibis was chosen as Miami's unofficial mascot by Nathan Duncan in 1926 when the school's yearbook chose its name to be ``The Ibis. ''
Knowledge 1: The Oregon Duck
The Oregon Duck is the mascot of the University of Oregon Ducks athletic program, based on Disney's Donald Duck character through a special license agreement. The mascot wears a green and yellow costume, and a green and yellow beanie cap with the word "Oregon" written on it. [SEP] Knowledge 2: Mr. Duck Steps Out
Mr. Duck Steps Out is a Donald Duck cartoon made by The Walt Disney Company. The film was released on June 7, 1940 and featured the debut of Daisy Duck. The short was directed by Jack King and written by Carl Barks, Chuck Couch, Jack Hannah, Harry Reeves, Milt Schaffer, and Frank Tashlin
Knowledge 1: Chihuahua (state)
The end of the Porfiriato came in 1910 with the beginning of the Mexican Revolution. Díaz had stated that Mexico was ready for democracy and he would step down to allow other candidates to compete for the presidency, but Díaz decided to run again in 1910 for the last time against Francisco I. Madero. During the campaign Díaz incarcerated Madero on election day in 1910. Díaz was announced the winner of the election by a landslide, triggering the revolution. Madero supporter Toribio Ortega took up arms with a group of followers at Cuchillo Parado, Chihuahua on November 10, 1910. [SEP] Knowledge 2: Gilbert Gottfried
In March 2011, Gottfried made a series of jokes on his Twitter account about the earthquake disaster in Japan. Aflac, which does 75% of its business in Japan, responded by dismissing Gottfried from voicing its duck mascot on March 14, 2011, and announced a casting call for his replacement as the voice of the duck. He was replaced by Daniel McKeague (who did an impression of Gottfried) on April 26, 2011.

Answer: when the school's yearbook chose its name to be ``The Ibis