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.

Passage: Berlyand was born in Kharkov on September 20, 1957. His father, Viktor Berlyand, was a mechanical engineer, and his mother, Mayya Genkina, an electronics engineer. Upon his graduation in 1979 from the department of mathematics and mechanics at the National University of Kharkov, he began his doctoral studies at the same university and earned a Ph. D. in 1984. His Ph. D. thesis studied the homogenization of elasticity problems. He worked at the Semenov Institute of Chemical Physics in Moscow. In 1991 he moved to the United States and started working at Pennsylvania State University, where he has served as a full professor since 2003. He has held long-term visiting positions at Princeton University, the California Institute of Technology, the University of Chicago, the Max Planck Institute for Mathematics in the Sciences, Argonne and Los Alamos National Laboratories. His research has drawn support from the National Science Foundation(NSF), NIH/NIGMS, the Applied Mathematics Program of the DOE Office of Sciences, BSF (the Bi-National Science Foundation USA-Israel) and the NATO Science for Peace and Security Section. Berlyand has authored roughly 100 works on homogenization theory and PDE/variational problems in biology and material science. He has organized a number of professional conferences and serves as a co-director of the Center for Mathematics of Living and Mimetic Matter at Penn State University. He has supervised 17 graduate students and ten postdoctoral fellows.
 Link Information:  Founded in 1746 Answer: Princeton 
Of the six institutions that Leonid Beryland had visiting positions at, which is the oldest?

Passage: In 1983 elections, N. T. Rama Rao came to power defeating the Indian National Congress. He praised the Naxalites for their patriotism before the elections. After coming to power, he demonstrated no significant change in government policy towards the revolutionary movement. Particularly after he was elected for a second time in 1985, his government put all its efforts to suppress the Naxalite movement in the state. Varavara Rao too was subjected to severe repression during this time. Six cases were foisted against him in 1985 alone. In July that year, along with functionaries of other people's organisations, he undertook an all India tour to make the people aware of the repression that was going on in Andhra Pradesh. After visiting Maharashtra, Madhya Pradesh, Bihar, West Bengal, New Delhi and Tamil Nadu, Varavara Rao returned to Andhra Pradesh in September to attend court cases. Dr. Ramanatham, a pediatrician and civil liberties activist was a close friend of Varavara Rao. While killing Dr. Ramanatham, and on several other occasions, police openly declared that killing Varavara Rao was their aim. With his life at risk, Varavara Rao could not discharge his duties as Secretary of Virasam and spokesperson of revolutionary literary movement. He was not able to move freely in Andhra Pradesh. Warangal has become a forbidden place for him. Armed and unarmed ruffians and police in civil clothes attacked his house on several occasions. Persecution against his friends in the movement was also mounted. Taking into consideration all these developments, Varavara Rao chose to cancel his bail in Secunderabad Conspiracy Case. On his request, his bail was cancelled and he was sent to jail on 26 December 1985.
 Link Information: A Naxal or Naxalite () is a member of any political organisation that claims the legacy of the Communist Party of India (Marxist-Leninist), founded in Calcutta in 1969. Answer: 14
How long had the Naxalites been in existence for the year Rao came to power?

Passage: The division traced its heritage back to the 7th Guards Tank Corps, formed during World War II in July 1943 from the 15th Tank Corps for its performance in Operation Kutuzov, the Soviet counteroffensive after the Battle of Kursk. It was part of the 3rd Guards Tank Army during the war, and was converted into a tank division like the rest of the tank corps in 1945. Stationed in Czechoslovakia postwar, it was briefly downsized into a regiment in 1946 and relocated to eastern Germany in 1947, becoming part of the Group of Soviet Occupation Forces in Germany, which later became the Group of Soviet Forces in Germany (GSFG). The division was stationed at Roßlau in East Germany for the rest of the Cold War and participated in the Warsaw Pact invasion of Czechoslovakia, Operation Danube, in August 1968. For much of the 1980s it formed part of the 3rd Red Banner Army. As the Cold War wound down, the troops of the GSFG, renamed the Western Group of Forces in 1989, were pulled out of Germany, and the 7th Guards Tank Division was withdrawn to Pyriatyn in Ukraine, where it became a storage base in July 1990.
 Link Information: The Battle of Kursk was a Second World War engagement between German and Soviet forces Answer: German and Soviet

What countries battled in the Battle of Kursk?