In this task, you will be presented with a premise and a hypothesis sentence. Determine whether the hypothesis sentence entails (implies), contradicts (opposes), or is neutral with respect to the given premise. Please answer with "Contradiction", "Neutral", or "Entailment".
Q: Premise: Aleksandr Danilovich Aleksandrov (Russian: , alternative transliterations: "Alexandr" or "Alexander" (first name), and "Alexandrov" (last name)) (August 4, 1912 July 27, 1999), was a Soviet/Russian mathematician, physicist, philosopher and mountaineer. <sep> Hypothesis: Aleksandr Danilovich Aleksandrov was alive in 1902, but not in 1915.
A:
Contradiction