anchor.diff:  
   === M
   
  +M: from clamp
  +
  +
   MA: male athletes
   
   
  
positive.code: SE: sleep efficiency
  
  
  ShaftW1: Shaft width combined
  
  
  
negative.code: VOS: velocity of sound
  
  
  VPWL-dr: delayed recall for visually presented word list
  
  
  Vrb: verbal
  
  
  