In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

Q: Passage: Rush debuted under the ring name "LI Green", but after a negative response to the name from promoters, he changed it to "Lennon Duffy". He learned wrestling during 2014 with MCW Training Center. He debuted at the 2014 Tribute To The Legends and created a tag team named "Sudden Impact" with Patrick Clark, who would go on to work for WWE as Velveteen Dream. On July 18, he won the Shane Shamrock Memorial Cup XV, defeating Brandon Scott, Drolix, Eddie Edwards, Matt Cross and Shane Strickland in a six-way elimination match. On October 3, he and his teammate Patrick Clark won the MCW Tag Team Championship, defeating The Hell Cats and The Ecktourage. They lost the title thirteen days later to The Ecktourage. He also competed for Evolve Wrestling where he defeated Fred Yehi on November 6. He lost his match against Ethan Page the following day. Lucha Libre Elite announced Rush as a participant in the Elite World Championship. On Thursday June 23, 2016, Rush defeated David Tita in the first day of the Elite World Championship to make the quarter final. On Saturday June 25, 2016, he was defeated by Michael Elgin. On February 18, 2017, Rush made his debut for Pro Wrestling Guerrilla at "Only Kings Understand Each Other", where he was defeated by Ricochet. On May 27, 2017, Rush defeated Ken Broadway at House of Glory's "Adrenaline" to capture the HOG Crown Jewel Championship, ending Broadway's almost year long reign. Rush lost the title to HOG World Heavyweight Champion Anthony Gangone in a title for title match at House of Glory's "Never Trust a Snake" on July 1.
 Link Information: Maryland Championship Wrestling (MCW) was originally established by wrestlers Dan McDevitt and Dennis Wipprecht as an extension of the wrestling school Bone Breakers Training Center Answer: Dan McDevitt and Dennis Wipprecht

A: Who owns the training center where Rush learned wrestling in 2014?
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Q: Passage: In 1961, Sadegh Tabatabai went to Aachen to study biochemistry and later received his doctorate from the University of Bochum. While in Aachen, he organized a student group that campaigned against Shah Mohammad Reza Pahlavi. In 1967, he handled Ulrike Meinhof material about Iran, which was used in a famous column in Konkret magazine opposing the Shah's visit to West Germany that year. Tabatabai gave a speech at the grave of Benno Ohnesorg, an unarmed university student who was shot during a demonstration against the Shah's visit to the Deutsche Oper in Berlin by Karl-Heinz Kurras, a police officer later discovered to be an agent of the East German secret police, the Stasi.
 Link Information: The Ruhr-University Bochum (German: Ruhr-Universität Bochum, RUB), located on the southern hills of central Ruhr area in Bochum, was founded in 1962 as the first new public university in Germany after World War II. Answer: Germany

A: What country was the university Sadeq Tabatabaei got his doctorate from located in?
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Q: Passage: Spāde was born into a fisherman's family in Ventspils, then part of the Russian Empire, in 1891. He was trained as a mechanical engineer at the Riga Polytechnic Institute, which he graduated in 1914. He was drafted in the Imperial Russian Baltic Fleet at the outset of World War I. He advanced from a position of michman to that of a torpedo boat commander and ended up as a commanding officer at the Black Sea Navy Brigade Headquarters in Batumi, where he married a Georgian woman in 1917. After the fall of the Russian Empire, he joined the navy of the People's Republic of Ukraine in early 1918 and, following a peace treaty between Ukraine and the Central Powers, pledged his loyalty to the Democratic Republic of Georgia. In Georgian service Spāde commanded a detachment of cutters in Batumi. In June 1918, the Ottoman troops took control of Batumi and made the town's garrison, including Spāde, captive. Released in October 1918, Spāde joined the ranks of the Armed Forces of South Russia, a White party to the Russian Civil War. He was promoted to Senior Lieutenant and put in charge of the Sevastopol port. In March 1920, Spāde, together with the defeated White forces, was evacuated to Constantinople, where he accepted Latvian citizenship and returned to Latvia with his wife.
 Link Information: none Answer: none

A:
When did Ventspils stop being a part of the Russian Empire?
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