anchor.diff:  use,test,lang,id
  +
  +,ackermann,gcc,2
  +,ackermann,icc,2
  +
  +,except,cmucl,2
  +,except,felix,0
  +,except,python,2
   
   ,fannkuch,python,0
   ,fannkuch,ocaml,0
  
positive.code: ,nsieve,ocaml,2
  ,nsieve,ocamlb,0
  
  ,tcpecho,nice,0
  ,tcprequest,nice,0
  ,tcpstream,nice,0
  
  
  ,except,cmucl,2
  ,except,felix,0
  ,except,python,2
  
  ,prodcons,ghc,0
  ,prodcons,gforth,0
  
negative.code: 
  ,takfp,perl,0
  
  ,tcpecho,nice,0
  ,tcprequest,nice,0
  ,tcpstream,nice,0
  
  
  