anchor.diff:  GASS28143,3,O,"C,S",Diffuse spiral arms
   GASS112038,2,B,"C,D",Offset bulge
   GASS30471,2,B,"C,S",Large galaxy
  -GASS112051,1,G,"C,B",Bright nearby object
  +GASS112051,3,O,C,
   GASS112109,2,B,"C,S,I",Large galaxy
   GASS24366,2,B,"C,S",Embedded source
   GASS24436,2,B,"C,S",Embedded source
  -GASS24437,1,O,"C,D",Edge on
  +GASS24437,2,B,"C,D","Edge on, Clumpy"
   GASS12983,2,B,"C,B",Bright nearby object
   GASS28168,1,O,"C,S",Diffuse spiral arms
   GASS112053,2,B,"C,S,I","Large galaxy, Diffuse spiral arms, Embedded object"
  
positive.code: GASS50856,2,O,"C,D",Edge on
  GASS112116,1,B,"C,D",Clumpy
  GASS50866,3,O,"C,S",Embedded object
  GASS40495,1,G,"C,S",Group
  GASS35497,3,B,"C,D",Large galaxy
  GASS28551,2,B,"C,D",Edge on
  GASS40494,2,B,"C,S",
  GASS112004,1,O,C,
  GASS40502,1,O,"C,S",Embedded object
  GASS112003,3,B,"C,S","Canonical, Embedded object"
  GASS112002,1,G,S,
  
negative.code: GASS38718,2,O,C,
  GASS10032,2,B,"C,S",Embedded object
  GASS38729,1,O,"C,S,D",Ring
  GASS38703,1,G,S,
  GASS38732,2,O,C,
  GASS38728,2,O,C,
  GASS10031,2,B,C,
  