input question: Question: "Why did vinyl become more popular after ww2?"  Context: "In 1931, RCA Victor introduced their vinyl-based Victrolac compound as a material for some unusual-format and special-purpose records. By the end of the 1930s vinyl's advantages of light weight, relative unbreakability and low surface noise had made it the material of choice for prerecorded radio programming and other critical applications. When it came to ordinary 78 rpm records, however, the much higher cost of the raw material, as well as its vulnerability to the heavy pickups and crudely mass-produced steel needles still commonly used in home record players, made its general substitution for shellac impractical at that time. During the Second World War, the United States Armed Forces produced thousands of 12-inch vinyl 78 rpm V-Discs for use by the troops overseas. After the war, the wider use of vinyl became more practical as new record players with relatively lightweight crystal pickups and precision-ground styli made of sapphire or an exotic osmium alloy proliferated. In late 1945, RCA Victor began offering special transparent red vinyl De Luxe pressings of some classical 78s, at a de luxe price. Later, Decca Records introduced vinyl Deccalite 78s, while other record companies came up with vinyl concoctions such as Metrolite, Merco Plastic and Sav-o-flex, but these were mainly used to produce "unbreakable" children's records and special thin vinyl DJ pressings for shipment to radio stations."  Answer:???
output answer: new record players
Question: "Which happened first, the Marco Polo Bridge Incident or the capturing of Nanking?"  Context: "By 1937, Japan controlled Manchuria and was ready to move deeper into China. The Marco Polo Bridge Incident on 7 July 1937 provoked full-scale war between China and Japan. The Nationalist and Communist Chinese suspended their civil war to form a nominal alliance against Japan, and the Soviet Union quickly lent support by providing large amount of materiel to Chinese troops. In August 1937, Generalissimo Chiang Kai-shek deployed his best army to fight about 300,000 Japanese troops in Shanghai, but, after three months of fighting, Shanghai fell. The Japanese continued to push the Chinese forces back, capturing the capital Nanking in December 1937 and committed which was known as Nanking Massacre. In March 1938, Nationalist forces won their first victory at Taierzhuang. but then the city of Xuzhou was taken by Japanese in May. In June 1938, Japan deployed about 350,000 troops to invade Wuhan and captured it in October. The Japanese achieved major military victories, but world opinion—in particular in the United States—condemned Japan, especially after the Panay Incident."  Answer:
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Answer: The Marco Polo Bridge Incident
Q: Question: "What happened in the 2nd year of the 20th century?"  Context: ""Baseball's Sad Lexicon," also known as "Tinker to Evers to Chance" after its refrain, is a 1910 baseball poem by Franklin Pierce Adams. The poem is presented as a single, rueful stanza from the point of view of a New York Giants fan seeing the talented Chicago Cubs infield of shortstop Joe Tinker, second baseman Johnny Evers, and first baseman Frank Chance complete a double play. The trio began playing together with the Cubs in 1902, and formed a double play combination that lasted through April 1912. The Cubs won the pennant four times between 1906 and 1910, often defeating the Giants en route to the World Series."  Answer:
A: The trio began playing together with the Cubs
Question: Question: "What issues did the horns have due to mechanical resonances?"  Context: "Delicate sounds and fine overtones were mostly lost, because it took a lot of sound energy to vibrate the recording horn diaphragm and cutting mechanism. There were acoustic limitations due to mechanical resonances in both the recording and playback system. Some pictures of acoustic recording sessions show horns wrapped with tape to help mute these resonances. Even an acoustic recording played back electrically on modern equipment sounds like it was recorded through a horn, notwithstanding a reduction in distortion because of the modern playback. Toward the end of the acoustic era, there were many fine examples of recordings made with horns."  Answer:
Answer: Delicate sounds and fine overtones were mostly lost
[Q]: Question: "Where is TB very prevalent?"  Context: "One-third of the world's population is thought to be infected with TB. New infections occur in about 1% of the population each year. In 2014, there were 9.6 million cases of active TB which resulted in 1.5 million deaths. More than 95% of deaths occurred in developing countries. The number of new cases each year has decreased since 2000. About 80% of people in many Asian and African countries test positive while 5–10% of people in the United States population tests positive by the tuberculin test. Tuberculosis has been present in humans since ancient times."  Answer:
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[A]: many Asian and African countries
Problem: Given the question: Question: "If someone in America uses the word "evangelical", of what are they speaking?"  Context: "During the Reformation, the term was hardly used outside of the German politics. The word evangelical (German: evangelisch), which refers to the gospel, was much more widely used for those involved in the religious movement. Nowadays, this word is still preferred among some of the historical Protestant denominations, above all the ones in the German-speaking area such as the EKD. The German word evangelisch means Protestant, and is different from the German evangelikal, which refers to churches shaped by Evangelicalism. The English word evangelical usually refers to Evangelical Protestant churches, and therefore not to Protestantism as a whole. It traces its roots back to the Puritans in England, where Evangelicalism originated, and then was brought to the United States. The word reformatorisch is used as an alternative for evangelisch in German, and is different from English reformed (German: reformiert), which refers to churches shaped by ideas of John Calvin, Huldrych Zwingli and other Reformed theologians."  Answer:
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The answer is:
Evangelical Protestant churches