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: ː,:,length mark
  ˑ,:\,half-length
  ̆,_X,extra-short
  .,.,syllable break
  ʍ,W,vl labial-velar fricative
  w,w,vd labio-velar approximant
  ɥ,H,labial-palatal approximant
  