anchor.diff:  1,Trinity,E07000199,Tamworth,DIS,E05007074,
   1,Trumpington,E07000008,Cambridge,DIS,E05002714,
   1,Tuebrook and Stoneycroft,E08000012,Liverpool,MTD,E05000910,
  -1,Tuffley,E07000097,Gloucester,DIS,E05010966,
  +1,Tuffley,E07000081,Gloucester,DIS,E05010966,
   1,Tulketh,E07000123,Preston,DIS,E05005290,
   1,Tyburn,E08000025,Birmingham,MTD,E05001215,
   1,Tyldesley,E08000010,Wigan,MTD,E05000860,
  
positive.code: 3,Hawkwell East,E07000075,Rochford,DIS,E05010846,
  3,Hawkwell West,E07000075,Rochford,DIS,E05010847,
  3,Heathlands,E07000217,Woking,DIS,E05010798,
  3,Heavitree,E07000044,Exeter,DIS,E05011014,
  3,Hellaby,E08000018,Rotherham,MTD,E05001022,
  3,Hengrove and Whitchurch Park,E06000023,Bristol,UTA,E05010902,
  3,Hersham Village,E07000207,Elmbridge,DIS,E05011077,
  
negative.code: 2,"Randwick, Whiteshill and Ruscombe",E07000082,Stroud,DIS,E05010982,
  2,Abbeydale,E07000081,Gloucester,DIS,E05010950,
  2,Alresford and Itchen Valley,E07000094,Winchester,DIS,E05010995,
  2,Barnwood,E07000081,Gloucester,DIS,E05010952,
  2,Barton and Tredworth,E07000081,Gloucester,DIS,E05010953,
  2,Bedminster,E06000023,Bristol,UTA,E05010887,
  2,Bishopston and Ashley Down,E06000023,Bristol,UTA,E05010888,
  2,Bishopsworth,E06000023,Bristol,UTA,E05010889,
  