In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
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Question: Passage: As the 19th century progressed, the United States government's Indian removal policy pushed Native American tribes west of the Mississippi River.  In 1830, the Indian Removal Act was signed into law, and though that act did not directly address the Potawatomi people of Indiana, it led to several additional treaties that resulted in their removal.  In what came to be known as the Potawatomi Trail of Death, about 860 Potawatomi Indians who had refused to leave were forced to move from Indiana to Kansas.  On September 14, 1838, the group camped near Williamsport, and on September 15 they camped in the southwestern part of the county before moving into Illinois.  Before reaching their destination in Kansas, over 40 of them had died, many of them children; two children died and were buried at the second Warren County campsite.When the county was established, the Wabash River was vital to transportation and shipping.  Zachariah Cicott traded up and down the river, and cities like Attica, Perrysville, Baltimore and Williamsport were founded near the river's banks and flourished because of it.  In the 1840s, the Wabash and Erie Canal began to operate and provided even broader shipping opportunities, but the canal favored towns which were on the "right side" of the river; the canal was on the Fountain County side, and towns like Baltimore dwindled as a result.  Some towns, such as Williamsport and Perrysville, managed to participate in canal traffic through the use of side-cuts that brought traffic from the canal across the river.  When railroads were constructed starting in the 1850s, they in turn began to render the canals obsolete and allowed trade to reach towns that lacked water connections.  The canal continued to be used through the early 1870s.

Answer: What decade did the canals that provided broader shipping opportunities start to decline due to railroads?


Question: Passage: Dmitri Dmitriyevich Shostakovich (Russian: Дми́трий Дми́триевич Шостако́вич , tr. Dmitriy Dmitrievich Shostakovich, pronounced [ˈdmʲitrʲɪj ˈdmʲitrʲɪjɪvʲɪtɕ ʂəstɐˈkovʲɪtɕ]; 25 September [O.S. 12 September] 1906 – 9 August 1975) was a Russian composer and pianist. He is regarded as one of the major composers of the 20th century.Shostakovich achieved fame in the Soviet Union under the patronage of Soviet chief of staff Mikhail Tukhachevsky, but later had a complex and difficult relationship with the government. Nevertheless, he received accolades and state awards and served in the Supreme Soviet of the RSFSR (1947) and the Supreme Soviet of the Soviet Union (from 1962 until his death).
A polystylist, Shostakovich developed a hybrid voice, combining a variety of different musical techniques into his works. His music is characterized by sharp contrasts, elements of the grotesque, and ambivalent tonality; the composer was also heavily influenced by the neo-classical style pioneered by Igor Stravinsky, and (especially in his symphonies) by the late Romanticism of Gustav Mahler.
Shostakovich's orchestral works include 15 symphonies and six concerti. His chamber output includes 15 string quartets, a piano quintet, two piano trios, and two pieces for string octet. His solo piano works include two sonatas, an early set of preludes, and a later set of 24 preludes and fugues. Other works include three operas, several song cycles, ballets, and a substantial quantity of film music; especially well known is The Second Waltz, Op. 99, music to the film The First Echelon (1955–1956), as well as the suites of music composed for The Gadfly.

Answer: What is the last name of the person who had a complex and difficult relationship with the government?


Question: Passage: In 2012, American songwriter and record producer Benny Blanco met with Norwegian production duo StarGate at a recording studio in New York City to write new songs, including one for Rihanna. StarGate had previously produced her singles "Don't Stop the Music" (2007) and "Only Girl (In the World)" (2010). According to Blanco, he and StarGate wanted to deviate from Rihanna's usual sound and produce as though the song would be for a rapper such as Kanye West: "It's the one that we weren't thinking Rihanna ... that turned into the Rihanna record ... But that's how it always happens like with me". They produced the song's drum machine beat after the other instrumental music was recorded.StarGate's Mikkel Eriksen told The New York Times that Blanco took a recorded snippet of Eriksen's singing, altered it electronically, and made it sound "dirtier". He then applied timbre and used audio software to create ghostly accompaniment lines. Eriksen described Blanco's style as "unorthodox, as he almost never plays the keyboards but throws in weird samples and alters them to the right pitch to go with the song." Australian singer-songwriter Sia later joined them and wrote the lyrics for "Diamonds" in 14 minutes.After the song was completed, they wanted to play it to Rihanna, but Blanco was skeptical about the reaction towards the song because of its slow sound. After StarGate played it to her, they called Blanco from London and told him that she liked the song: "She's flippin' out. She played it like seven times in a row. It's her favorite song." Phil Tan and the assistant Daniela Rivera, mixed and mastered "Diamonds". Recalling it, in an interview with The Huffington Post, Blanco commented, "we needed to have it recorded, the beat finished, mixed and mastered in 24 hours. She was recording in a separate part of the world, sending back the files, we're finishing the music and then we're mixing and mastering it, and then it was out in a few days. It's fucking amazing and incredible." Kuk Harrell produced Rihanna's vocals on the song and recorded them together with Marcos Tovar.

Answer:
What is the full name of the person who, along with StarGate, produced a song's drum machine beat after other instrumental music was recorded?