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Thus , we introduce the symbol error probability , which is the probability P ( e ) that the demodulator will make a wrong estimation ( \ widehat ) of the transmitted symbol ( X ) based on the received symbol , which is defined as follows : where is the size of signal constellation .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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