4776
The International vocabulary of metrology identifies three distinct ways in which this is done - the first being the realisation of a measurement unit from its definition , the second the reproduction of measurement standards and the third the process of actually adopting a particular artifact as a standard .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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