#valuation__evaluation__rating  an appraisal of the value of something
  supertype:  #appraisal__assessment  the classification of someone or something with respect to its worth
  subtype:  #overvaluation  too high a value or price assigned to something
  subtype:  #undervaluation  too low a value or price assigned to something
  subtype:  #pricing  the evaluation of something in terms of its price
     subtype:  #price_gouging__pricegouging  pricing above the market when no alternative retailer is available
  subtype:  #reevaluation  the evaluation of something a second time (or more)
  subtype:  #mark.valuation__grade__score  a number or letter indicating quality (especially of a student's performance); "she made good marks in algebra"; "grade A milk"; "what was your score on your homework?"
     subtype:  #percentile__centile  (statistics) any of the 99 numbered points that divide an ordered set of scores into 100 parts each of which contains one-hundredth of the total
     subtype:  #decile  (statistics) any of nine points that divided a distribution of ranked scores into equal intervals where each interval contains one-tenth of the scores
     subtype:  #quartile  (statistics) any of three points that divide an ordered distribution into four parts each containing one quarter of the scores
  subtype:  #bond_rating  an evaluation by a rating company of the probability that a particular bond issue will default; bonds of the highest quality are said to have AAA ratings

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