Background: Ludendorff was born on 9 April 1865 in Kruszewnia near Posen, Province of Posen, Kingdom of Prussia (now Poznan County, Poland), the third of six children of August Wilhelm Ludendorff (1833-1905). His father was descended from Pomeranian merchants who had achieved the prestigious status of Junker. Erich's mother, Klara Jeanette Henriette von Tempelhoff (1840-1914), was the daughter of the noble but impoverished Friedrich August Napoleon von Tempelhoff (1804-1868) and his wife Jeannette Wilhelmine von Dziembowska (1816-1854), who came from a Germanized Polish landed family on the side of her father Stephan von Dziembowski (1779-1859). Through Dziembowski's wife Johanna Wilhelmine von Unruh (1793-1862), Erich was a remote descendant of the Counts of Donhoff, the Dukes of Duchy of Liegnitz and Duchy of Brieg and the Marquesses and Electors of Brandenburg.
Context: In 1885, Ludendorff was commissioned as a subaltern into the 57th Infantry Regiment, then at Wesel. Over the next eight years, he was promoted to lieutenant and saw further service in the 2nd Marine Battalion, based at Kiel and Wilhelmshaven, and in the 8th Grenadier Guards at Frankfurt on the Oder. His service reports reveal the highest praise, with frequent commendations. In 1893, he entered the War Academy, where the commandant, General Meckel, recommended him to the General Staff, to which he was appointed in 1894. He rose rapidly and was a senior staff officer at the headquarters of V Corps from 1902 to 1904.  Next he joined the Great General Staff in Berlin, which was commanded by Alfred von Schlieffen, Ludendorff directed the Second or Mobilization Section from 1904-13. Soon he was joined by Max Bauer, a brilliant artillery officer, who became a close friend. By 1911, Ludendorff was a full colonel. His section was responsible for writing the mass of detailed orders needed to bring the mobilized troops into position to implement the Schlieffen Plan. For this they covertly surveyed frontier fortifications in Russia, France and Belgium. For instance, in 1911 Ludendorff visited the key Belgian fortress city of Liege.  Deputies of the Social Democratic Party of Germany, which became the largest party in the Reichstag after the German federal elections of 1912, seldom gave priority to army expenditures, whether to build up its reserves or to fund advanced weaponry such as Krupp's siege cannons. Instead, they preferred to concentrate military spending on the Imperial German Navy. Ludendorff's calculations showed that to properly implement the Schlieffen Plan the Army lacked six corps.  Members of the General Staff were instructed to keep out of politics and the public eye, but Ludendorff shrugged off such restrictions. With a retired general, August Keim, and the head of the Pan-German League, Heinrich Class, he vigorously lobbied the Reichstag for the additional men. In 1913 funding was approved for four additional corps but Ludendorff was transferred to regimental duties as commander of the 39th (Lower Rhine) Fusiliers, stationed at Dusseldorf. "I attributed the change partly for my having pressed for those three additional army corps."  Barbara Tuchman characterizes Ludendorff in her book The Guns of August as Schlieffen's devoted disciple who was a glutton for work and a man of granite character but who was deliberately friendless and forbidding and therefore remained little known or liked. It is true that as his wife testified, "Anyone who knows Ludendorff knows that he has not a spark of humor...". He was voluble nonetheless, although he shunned small talk. John Lee, states that while Ludendorff was with his Fusiliers, "he became the perfect regimental commander ... the younger officers came to adore him." His adjutant, Wilhelm Breucker, became a devoted lifelong friend.
Question: What did he do after 1904?
Answer: In 1913 funding was approved for four additional corps but Ludendorff was transferred to regimental duties as commander of the 39th (Lower Rhine) Fusiliers,

Background: Alicia Augello Cook (born January 25, 1981), known professionally as Alicia Keys, is an American singer-songwriter, pianist, music producer, philanthropist, and actress. Keys released her debut album, Songs in A Minor in 2001 with J Records, having had previous record deals first with Columbia and then Arista Records. Songs in A Minor produced her first Billboard Hot 100 number-one single "Fallin'", and sold over 12 million copies worldwide. The album earned Keys five Grammy Awards in 2002.
Context: On March 25, 2016, Keys was announced as a new coach on Season 11 of The Voice. During The Voice finale, she finished in third place with her team member, We McDonald. On May 4, 2016, Keys released her first single in four years, entitled "In Common". On May 28, 2016, Keys performed in the opening ceremony of 2016 UEFA Champions League Final in San Siro, Milan. The song topped Billboard's Dance Club Songs chart on October 15. On June 20, 2016, Keys executive produced and starred in a short film We Are Here. The film follows Zara (Keys) and her family's quest to flee from the United States to Mexico after America after numerous bomb blasts destroy Los Angeles turning it into a war zone. On July 26, 2016, Keys performed at the 2016 Democratic National Convention in Philadelphia. In October 2016, she released a single from upcoming album Here called Blended Family (What You Do For Love) feat. A$AP Rocky. On November 1, Keys unveiled her short film, "The Gospel," to accompany the LP. Here was released on November 4, peaking at number 2 of the Billboard 200, becoming her seventh top 10 album. It peaked at number-one on the R&B/Hip-Hop Albums chart, becoming her seventh chart topper.  In January 2017 she released the track "That's What's Up" that re-imagines the spoken word segment on the Kanye West song "Low Lights". In season 12 of The Voice, Alicia was a coach for the second season in a row. She won the competition with her artist Chris Blue in the season 12 finale broadcast on May 23, 2017. In May 2017, in an interview with Entertainment Tonight, Alicia announced that she is working on her seventh studio album. In a letter to her fans, on the 'As I Am' 10th Anniversary, she revealed that the album is almost ready. On September 17, 2017, Keys performed at Rock in Rio, in a powerful and acclaimed performance. On October 18, 2017, NBC announced that she will be returning to the series for the upcoming 14th season on The Voice alongside veterans Levine, Shelton, and new coach Kelly Clarkson. She wrote and composed the song "We Are Here", which was featured in the short film We Rise; that film was part of the New-York Historical Society's "Hotbed" exhibit about women's suffrage, which ran from November 3, 2017 to March 25, 2018. On December 5, 2017, Hip-hop artist Eminem revealed that Keys would be collaborating on the song "Like Home" for his ninth studio album Revival.  On February 2, 2018, Keys was featured on the song "Morning Light" from Justin Timberlake's fifth studio album Man of the Woods.
Question: Was Alicia Keys a coach on the Voice?
Answer:
On March 25, 2016, Keys was announced as a new coach on Season 11 of The Voice. During The Voice finale, she finished in third place