question: Where did Rouben V. Ambartzumian's father die?
context: [["Viktor Ambartsumian", ["Viktor Amazaspovich Ambartsumian (\"Viktor Hamazaspi Hambardzumyan\"; 12 August 1996) was a Soviet Armenian scientist, and one of the founders of theoretical astrophysics.", "He worked in the field of physics of stars and nebulae, stellar astronomy, dynamics of stellar systems and cosmogony of stars and galaxies, and contributed to mathematical physics.", "Ambartsumian founded the Byurakan Observatory in 1946.", "He was the second and longest-serving president of the Armenian Academy of Sciences (1947\u201393) and also served as the president of the International Astronomical Union from 1961 to 1964 and was twice elected the President of the International Council of Scientific Unions (1966\u201372).", "He was a foreign member of numerous academies, including the Royal Society, the US National Academy of Sciences, and the Indian Academy of Sciences.", "Among his numerous awards are Stalin Prize (1946, 1950), the Hero of Socialist Labor (1968, 1978), the State Prize of the Russian Federation, the Gold Medal of the Royal Astronomical Society, the Bruce Gold Medal, and National Hero of Armenia."]], ["Place of birth", ["The place of birth( POB) or birthplace is the place where a person was born.", "This place is often used in legal documents, together with name and date of birth, to uniquely identify a person.", "As a general rule with respect to passports, the place of birth is determined to be the country that currently has\" sovereignty\" over the actual place of birth, regardless of when the birth actually occurred.", "The place of birth is not necessarily the place where the parents of the new baby live.", "If the baby is born in a hospital in another place, that place is the place of birth.", "In many countries, this also means that the government requires that the birth of the new baby is registered in the place of birth.", "Some countries place less or no importance on the place of birth, instead using alternative geographical characteristics for the purpose of identity documents.", "For example, Sweden has used the concept of\" f\u00f6delsehemortdomicile of birth\") since 1947.", "This means that the domicile of the baby's mother is the registered place of birth.", "The location of the maternity ward or other physical birthplace is considered unimportant.", "Similarly, Switzerland uses the concept of\" Heimatortlieu d'origineluogo d'origineplace of origin\" in German, French and Italian respectively).", "A child born to Swiss parents is automatically assigned the place of origin of the parent with the same last name, so the child either gets their mother's or father's place of origin.", "A child born to one Swiss parent and one foreign parent acquires the place of origin of their Swiss parent.", "In a Swiss passport and identity card, the holder's place of origin is stated, not their place of birth.", "In some countries( primarily in the Americas), the place of birth automatically determines the nationality of the baby, a practice often referred to by the Latin phrase\" jus soli\".", "Almost all countries outside the Americas instead attribute nationality based on the nationality( ies) of the baby's parents( referred to as\" jus sanguinis\").", "There can be some confusion regarding the place of birth if the birth takes place in an unusual way: when babies are born on an airplane or at sea, difficulties can arise.", "The place of birth of such a person depends on the law of the countries involved, which include the nationality of the plane or ship, the nationality( ies) of the parents and/ or the location of the plane or ship( if the birth occurs in the territorial waters or airspace of a country).", "Some administrative forms may request the applicant's\" country of birth\".", "It is important to determine from the requester whether the information requested refers to the applicant's\" place of birth\" or\" nationality at birth\".", "For US citizens born abroad who under the US Constitution acquire US citizenship at the time of birth, the nationality at birth will be USA( American), while the place of birth would be the country in which the actual birth takes place."]], ["Valley of Death", ["Valley of Death may refer to:"]], ["Where Was I", ["\" Where Was I?\" may refer to:"]], ["Rouben V. Ambartzumian", ["Rouben V. Ambartzumian (Armenian:) (born 1941) is an Armenian mathematician and Academician of National Academy of Sciences of Armenia.", "He works in Stochastic Geometry and Integral Geometry where he created a new branch, combinatorial integral geometry.", "The subject of combinatorial integral geometry received support from mathematicians K. Krickeberg and D. G. Kendall at the 1976 Sevan Symposium (Armenia) which was sponsored by Royal Society of London and The London Mathematical Society.", "In the framework of the later theory he solved a number of classical problems in particular the solution to the Buffon Sylvester problem as well as the Hilbert's fourth problem in 1976.", "He is a holder of the Rollo Davidson Prize of Cambridge University of 1982.", "Rouben's interest in Integral Geometry was inherited from his father.", "Nobel prize winner Allan McLeod Cormack Laureate for Tomography wrote: \"Ambartsumian gave the first numerical inversion of the Radon transform and it gives the lie to the often made statement that computed tomography would have been impossible without computers\".", "Victor Hambardzumyan, in his book", "\"A Life in Astrophysics\", wrote about the work of Rouben V. Ambartzumian, \"More recently, it came to my knowledge that the invariance principle or invariant embedding was applied in a purely mathematical field of integral geometry where it gave birth to a novel, combinatorial branch.\"", "See R. V. Ambartzumian, \u00abCombinatorial Integral Geometry\u00bb, John Wiley, 1982."]], ["Beaulieu-sur-Loire", ["Beaulieu- sur- Loire is a commune in the Loiret department in north -central France.", "It is also the place of death of Jacques MacDonald, a French general who served in the Napoleonic Wars"]], ["Motherland (disambiguation)", ["Motherland is the place of one's birth, the place of one's ancestors, or the place of origin of an ethnic group.", "Motherland may also refer to:"]], ["Dance of Death (disambiguation)", ["Dance of Death, also called\" Danse Macabre\", is a late- medieval allegory of the universality of death.", "Dance of Death or The Dance of Death may also refer to:"]], ["Place of origin", ["In Switzerland, the place of origin( literally\" home place\" or\" citizen place\") denotes where a Swiss citizen has their municipal citizenship.", "It is not to be confused with the place of birth or place of residence, although two or all three of these locations may be identical depending on the person's circumstances."]], ["Sennedjem", ["The Ancient Egyptian artisan Sennedjem lived in Set Maat( translated as\" The Place of Truth\"), contemporary Deir el- Medina, on the west bank of the Nile, opposite Thebes, during the reigns of Seti I and Ramesses II.", "Sennedjem had the title\" Servant in the Place of Truth\".", "He was buried along with his wife, Iyneferti, and family in a tomb in the village necropolis.", "His tomb was discovered January 31, 1886.", "When Sennedjem's tomb was found, in it there was regular furniture from his home, including a stool and a bed, which he actually used when he was alive.", "His titles included Servant in the Place of Truth, meaning that he worked on the excavation and decoration of the nearby royal tombs."]]]
supporting_facts: [["Rouben V. Ambartzumian", 7], ["Viktor Ambartsumian", 2]]
evidences: [["Rouben V. Ambartzumian", "father", "Victor Hambardzumyan"], ["Viktor Amazaspovich Ambartsumian", "place of death", "Byurakan"]]
answer: Byurakan