anchor.diff: -SAMPA,IPA-UK,IPA-US,Phoneng,Lytspel,Sample,Notes
  +SAMPA,IPA-UK,IPA-US,PhonEng,Lytspel,Sample,Notes
   ',ˈ,,°,,,Stress marker
   -,ˌ,,-,,,Secondary stress marker (ignored)
  +-,ʲ,,-,,,Rarely used palatization marker (ignored)
   @,ə,,',e,lemon,
   @`,-,ɚ,'r,er,number,RP doesn’t have this sound
   3:,ɜː,,ér,ur,turn,
  +E,-,,é,,danseuse,Occasionally used in foreign words
   a,a,æ,a,,cat,
   A,ɑː,,á,aa,palm,
   aI,aɪ,,ï,ai,price,
  
positive.code: or,-,oːɹ,ör,oar,port,"RP doesn’t have this, using /Or/ instead"
  OI,ɔɪ,,oi,,point,
  oU,əʊ,oʊ,ö,oa,boat,
  p,,,,,pop,
  Q,ɒ,,o,,dog,GA doesn’t have this sound (unified with /A/)
  r,ɹ,,r,,run,
  s,,,,,sun,
  S,ʃ,,ś,sh,ship,
  t,,,,,test,
  
negative.code: i:,i,,,,fancy,Variant used by espeak (at end of words and in front of other vowels)
  j,,,y,,yes,
  k,,,,c,cat,
  k,x,,-,,Ahmed,Occasionally used in foreign words
  k,ç,,-,,Utrecht,Occasionally used in foreign words
  l,,,,,leg,
  l,ɬ,,-,,llano,Occasionally used in foreign words
  m,,,,,mad,
  n,,,,,now,
  N,ŋ,,ń,ng,long,
  