{
  "syllabicity":{
    "\u0329": { "visual":"◌̩",  "ipa": "Syllabic",     "unicode": "COMBINING VERTICAL LINE BELOW"},
    "\u032F": { "visual":"◌̯",  "ipa": "Non-syllabic", "unicode": "COMBINING INVERTED BREVE BELOW"}
  },
  "release":{
    "\u207F": { "visual":"◌ⁿ", "ipa": "Nasal",        "unicode": "SUPERSCRIPT LATIN SMALL LETTER N"},
    "\u031A": { "visual":"◌̚",  "ipa": "No audible",   "unicode": "COMBINING LEFT ANGLE ABOVE"},
    "\u02E1": { "visual":"◌ˡ", "ipa": "Lateral",      "unicode": "MODIFIER LETTER SMALL L"},
    "\u02B0": { "visual":"◌ʰ", "ipa": "Aspirated",    "unicode": "MODIFIER LETTER SMALL H"}
  },
  "phonation":{
    "\u0325": { "visual":"◌̥", "ipa": "Voiceless",     "unicode": "COMBINING RING BELOW"},
    "\u032C": { "visual":"◌̬", "ipa": "Voiced",        "unicode": "COMBINING CARON BELOW"},
    "\u0324": { "visual":"◌̤", "ipa": "Breathy voice", "unicode": "COMBINING DIAERESIS BELOW"},
    "\u0330": { "visual":"◌̰", "ipa": "Creaky voice",  "unicode": "COMBINING TILDE BELOW"}
  },
  "articulation":{
    "\u032A": { "ipa": "Dental",          "unicode": "COMBINING BRIDGE BELOW"}, 
    "\u033A": { "ipa": "Apical",          "unicode": "COMBINING INVERTED BRIDGE BELOW"},
    "\u033C": { "ipa": "Linguolabial",    "unicode": "COMBINING SEAGULL BELOW"},
    "\u033B": { "ipa": "Laminal",         "unicode": "COMBINING SQUARE BELOW"},
    "\u031F": { "ipa": "Advanced",        "unicode": "COMBINING PLUS SIGN BELOW"},
    "\u0320": { "ipa": "Retracted",       "unicode": "COMBINING MINUS SIGN BELOW"},
    "\u0308": { "ipa": "Centralized",     "unicode": "COMBINING DIAERESIS"},
    "\u033D": { "ipa": "Mid-centralized", "unicode": "COMBINING X ABOVE"},
    "\u031D": { "ipa": "Raised",          "unicode": "COMBINING UP TACK BELOW"},
    "\u031E": { "ipa": "Lowered",         "unicode": "COMBINING DOWN TACK BELOW"}
  },
  "secondary-articulation":{
    "\u02B7": { "ipa": "Labialized",            "unicode": "MODIFIER LETTER SMALL W"},
    "\u02B2": { "ipa": "Palatalized",           "unicode": "MODIFIER LETTER SMALL J"},
    "\u1DA3": { "ipa": "Labio-palatalized",     "unicode": "MODIFIER LETTER SMALL TURNED H"},
    "\u02E0": { "ipa": "Velarized",             "unicode": "MODIFIER LETTER SMALL GAMMA"},
    "\u02E4": { "ipa": "Pharyngealized",        "unicode": "MODIFIER LETTER SMALL REVERSED GLOTTAL STOP"},
    "\u0334": { "ipa": "Velarized or pharyngealized", "unicode": "COMBINING TILDE OVERLAY"}
  },
  "nasalized":{
    "\u0303": { "ipa": "Nasalized",             "unicode": "COMBINING TILDE"}
  },
  "rhotacized":{
    "\u02DE": { "ipa": "Rhotacized",            "unicode": "MODIFIER LETTER RHOTIC HOOK"}
  },
  "roundedness":{
    "\u0339": { "ipa": "More rounded",          "unicode": "COMBINING RIGHT HALF RING BELOW"},
    "\u031C": { "ipa": "Less rounded",          "unicode": "COMBINING LEFT HALF RING BELOW"}
  },
  "tongue-root":{
    "\u0318": { "ipa": "Advanced tongue root",  "unicode": "COMBINING LEFT TACK BELOW"},
    "\u0319": { "ipa": "Retracted tongue root", "unicode": "COMBINING RIGHT TACK BELOW"}
  }
}