anchor.diff:  +
   Vocabulary Score is calculated as follows:
   +
  +[.text-center]
  +=====================================================================
   Vocabulary Score =
   latexmath:[\frac{\displaystyle \sum_{graphs}^{g}v(g)}{N}]
   
  
positive.code:       100 & {\rm if~both~of~them~are~true }
    \end{array}
    \right.]
  
  [[usefulness]]
  === 2.4 Usefulness
  
negative.code: 
  We evaluate Validity as follows:
  
  [.text-center]
  =====================================================================
  Validity = 40 * Cool URI Score + 60.0 * Linked Data Rule Score
  =====================================================================
  
  [[performance]]
  === 2.6 Performance
  