anchor.diff:  a,a
   á,a
   à,a
  -â,ɑ
  +â,a
   ai,ɛ
   ain,ɛn
   aî,ɛ
   aï,ai
  -aie,ɛ
  +aie,e
   aou,au
   aoû,au
  +eau,o
   au,o
  -ay,ɛ
  -aye,ɛj
  +ay,e
  +aye,ej
   e,ə
   é,e
   ée,e
  
positive.code: p,p
  pp,p
  ph,f
  r,r
  s,s
  ss,s
  tt,t
  
negative.code: õ,ɔ̃
  uẽ,ɥɛ̃
  ouễ,wɛ̃
  ÿ,i
  ɑ̃,ɑ̃
  