instruction:
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.
question:
Passage: SMS Kronprinz Erzherzog Rudolf was a unique ironclad warship built for the Austro-Hungarian Navy in the 1880s. The last ironclad completed for the Austro-Hungarian Navy, Kronprinz Erzherzog Rudolf was laid down in January 1884, launched in July 1887, and completed in September 1889. She was armed with a main battery of three guns and had compound steel plating of the same thickness on her armored belt. The ship had an uneventful career, in large part due to her rapid obsolescence. She made trips to foreign countries to represent Austria-Hungary, but was reduced to a coastal defense ship by 1906. She continued in this role through World War I, based at Cattaro Bay, where her crew took part in the Cattaro Mutiny in early 1918. After the war, Kronprinz Erzherzog Rudolf was transferred to the Navy of the Kingdom of Serbs, Croats and Slovenes and renamed Kumbor, but she remained in their inventory for only a year, being sold for scrap in 1922.
 Link Information:  Existing between 1867 and 1918, the k.u.k. Kriegsmarine came into being after the formation of Austria-Hungary in 1867, and ceased to exist upon the Empire's defeat and subsequent collapse at the end of World War I. Answer: 51
answer:
 The Navy that this ship was a member of existed for how many years?


question:
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 
answer:
Of the six institutions that Leonid Beryland had visiting positions at, which is the oldest?


question:
Passage: In April 2012, author Kate Bornstein spoke about McDonald on MSNBC cable television program Melissa Harris-Perry, comparing McDonald's situation with George Zimmerman's in the aftermath of the shooting of Trayvon Martin regarding self-defense issues and how the case is viewed through the media focus. The case also attracted national attention from LGBT activists including author Leslie Feinberg, who wrote that "the right of self-defense against all forms of oppressions—the spirit of Stonewall—is at the heart of the demand to free [McDonald]". Cam Gordon, a member of the Minneapolis City Council, announced his support for McDonald and called the incident "another example [of] transgender women of color being targeted for hate- and bias-related violence", and Susan Allen, a member of the Minnesota House of Representatives, called on Freeman to consider the "extenuating circumstances" of McDonald's case. In May 2013, an article by Marc Lamont Hill for Ebony.com entitled "Why Aren't We Fighting for CeCe McDonald?" won the GLAAD Media Award for "Outstanding Digital Journalism Article". McDonald also received the support of transgender activist and actress Laverne Cox, who stars in the television series Orange Is the New Black.
 Link Information: none Answer: none
answer:

How long had Marc Lamont Hill been working at Ebony.com when he wrote the article about McDonald?