anchor.diff:  ̴,_e,velarized or pharyngealized
   ̝,_r,raised
   ̞,_o,lowered
  -ˀ,_k,glottalized
   ̃,~,nasalized
   ⁿ,_n,nasal release
   ˡ,_l,lateral release
  
positive.code: x,x,vl velar fricative
  ɣ,G,vd velar fricative
  χ,X,vl uvular fricative
  ʁ,R\,vd uvular fricative
  ħ,X\,vl pharyngeal fricative
  ʕ,?\,vd pharyngeal fricative
  h,h,vl glottal fricative
  
negative.code: ɫ,5,velarized vl alveolar lateral
  ʄ,J\_<,vl palatal implosive
  ʼ,_>,ejective
  ɝ,3`,rhotacized open-mid central
  t͡ʃ,tS,vl postalveolar affricate
  d͡ʒ,dZ,vd postalveolar affricate
  t͡ɕ,ts\,vl alveolo-palatal affricate
  d͡ʑ,dz\,vd alveolo-palatal affricate
  t͡ɬ,tK,vl alveolar lateral affricate 
  k͡p,kp,vl labial-velar plosive
  g͡b,gb,vd labial-velar plosive
  ŋ͡m,Nm,labial-velar nasal stop
  