#calculator__reckoner__figurer__computer  an expert at calculation (or at operating calculating machines)
  supertype:  expert  a person with special knowledge or ability who performs skillfully
  subtype:  number_cruncher.calculator__numbercruncher  someone able to perform complex and lengthy calculations
  subtype:  statistician__actuary  someone versed in the collection and interpretation of numerical data (especially someone who uses statistics to calculate insurance premiums)
     subtype:  surveyor.statistician  someone who conducts a statistical survey

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