input: Please answer the following: Extract the answer to the question from the following context. Question: What was the Christianization of Kievan Rus'? Context: Vladimir had been prince of Novgorod when his father Sviatoslav I died in 972. He was forced to flee to Scandinavia in 976 after his half-brother Yaropolk had murdered his other brother Oleg and taken control of Rus. In Scandinavia, with the help of his relative Earl Hakon Sigurdsson, ruler of Norway, Vladimir assembled a Viking army and reconquered Novgorod and Kiev from Yaropolk. As Prince of Kiev, Vladimir's most notable achievement was the Christianization of Kievan Rus', a process that began in 988. The Primary Chronicle states that when Vladimir had decided to accept a new faith instead of the traditional idol-worship (paganism) of the Slavs, he sent out some of his most valued advisors and warriors as emissaries to different parts of Europe. They visited the Christians of the Latin Rite, the Jews, and the Muslims before finally arriving in Constantinople. They rejected Islam because, among other things, it prohibited the consumption of alcohol, and Judaism because the god of the Jews had permitted his chosen people to be deprived of their country. They found the ceremonies in the Roman church to be dull. But at Constantinople, they were so astounded by the beauty of the cathedral of Hagia Sophia and the liturgical service held there that they made up their minds there and then about the faith they would like to follow. Upon their arrival home, they convinced Vladimir that the faith of the Byzantine Rite was the best choice of all, upon which Vladimir made a journey to Constantinople and arranged to marry Princess Anna, the sister of Byzantine emperor Basil II.
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output: Vladimir's most notable achievement

input: Please answer the following: Extract the answer to the question from the following context. Question: What was bigger the Pinkertons or the police Context: In the American Old West, policing was often of very poor quality.[citation needed] The Army often provided some policing alongside poorly resourced sheriffs and temporarily organized posses.[citation needed] Public organizations were supplemented by private contractors, notably the Pinkerton National Detective Agency, which was hired by individuals, businessmen, local governments and the federal government. At its height, the Pinkerton Agency's numbers exceeded those of the United States Army.[citation needed]
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output: Pinkerton

input: Please answer the following: Extract the answer to the question from the following context. Question: Yosemite and Yellowstone are both national areas classified as a what? Context: W 122nd Street Seminary Row runs three blocks (1,500 feet (460 m)) west from the intersection of Amsterdam Avenue (Tenth Avenue) and terminates at the intersection of Riverside Drive. East of Amsterdam, Seminary Row bends south along Morningside Park and is resigned as Morningside Drive (Ninth Avenue). Seminary row runs in Morningside Heights, the district surrounding Columbia University, and crosses portions of Broadway and Claremont Avenue.
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output: Park

input: Please answer the following: Extract the answer to the question from the following context. Question: What does research show about sexual orientation? Context: Scientists do not know the exact cause of sexual orientation, but they believe that it is caused by a complex interplay of genetic, hormonal, and environmental influences. They favor biologically-based theories, which point to genetic factors, the early uterine environment, both, or the inclusion of genetic and social factors. There is no substantive evidence which suggests parenting or early childhood experiences play a role when it comes to sexual orientation. Research over several decades has demonstrated that sexual orientation ranges along a continuum, from exclusive attraction to the opposite sex to exclusive attraction to the same sex.
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output:
they believe that it is caused by a complex interplay of genetic, hormonal, and environmental influences