anchor.diff:  GASS19918,3,B,"C,S",
   GASS32308,2,B,C,
   GASS108140,1,G,-,Edge on
  -GASS108148,1,B,"C,S,D,B","Large galaxy, Diffuse spiral arms, Embedded object"
  +GASS108148,2,B,"C,S,D,B","Large galaxy, Diffuse spiral arms, Embedded object"
   GASS108094,3,B,"C,S,D,B","Diffuse spiral arms, Interacting"
   GASS108133,2,B,"C,S",Embedded object
   GASS56486,2,B,C,
  
positive.code: GASS34723,3,O,C,
  GASS23437,1,G,C,
  GASS8953,2,G,C,
  GASS8945,1,G,C,
  GASS23441,2,B,C,
  GASS23408,1,G,"C,S",
  GASS110063,1,O,"C,S",Embedded object
  GASS9085,3,B,"C,S",Diffuse spiral arms
  
negative.code: GASS23069,1,O,C,
  GASS5204,2,B,"C,S,D",Embedded object
  GASS23070,2,B,"C,D",Edge on
  GASS110019,2,B,C,
  GASS110057,2,O,"C,D",
  GASS23102,3,O,"C,S",
  GASS54577,1,G,S,Embedded object
  