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# Table of distinctive features
# Every phoneme should be listed either in FEATTAB or in MULTIPART_PHONES

# Stop release segments
p -continuant,-sonorant,+lips,,-voice
t -continuant,-sonorant,+blade,-strident,+anterior,-distributed,-voice
k -continuant,-sonorant,+body,-voice
b -continuant,-sonorant,+lips,+voice
d -continuant,-sonorant,+blade,-strident,+anterior,-distributed,+voice
g -continuant,-sonorant,-blade,+body,+voice

# Flap
dx -continuant,+sonorant,+blade,-nasal,+reduced

# Fricatives
f +continuant,-sonorant,+lips,-strident,-voice
th +continuant,-sonorant,+blade,+anterior,+distributed,-strident,-voice
s +continuant,-sonorant,+blade,+anterior,-distributed,+strident,-voice
sh +continuant,-sonorant,+blade,-anterior,+distributed,+strident,-voice
v +continuant,-sonorant,+lips,-strident,+voice
dh +continuant,-sonorant,+blade,+anterior,+distributed,-strident,+voice
z +continuant,-sonorant,+blade,+anterior,-distributed,+strident,+voice
zh +continuant,-sonorant,+blade,-anterior,+distributed,+strident,+voice

# Nasals
# /n/ is not specified for anterior or distributed; it's produced
#    apically by default, but often becomes retroflex or dental
#    in /r/ or /dh/ context, and these allophones are not perceived
#    distinctly in English
# /nx/ is pronlex's mistaken notation for /ng/.  Rather than correct
#    it in the source, this file treats nx as ng; don't generalize
m -continuant,+sonorant,+lips,+nasal
em -continuant,+sonorant,+lips,+nasal,+syllabic
n -continuant,+sonorant,+blade,+nasal
en -continuant,+sonorant,+blade,+nasal,+syllabic
nx -continuant,+sonorant,+body,+nasal
eng -continuant,+sonorant,+body,+nasal

# /r/ is -anterior, but /er/ is not, 
# because /r/ changes the place of a preceding /t/ or /s/, 
# while /er/ usually doesn't;
r +continuant,+sonorant,-syllabic,+blade,-anterior,-distributed
axr +continuant,+sonorant,+syllabic,-front,+reduced,+retroflex
er +continuant,+sonorant,+syllabic,-high,-low,-front,-ATR,-reduced,+retroflex
er+1 +continuant,+sonorant,+syllabic,-high,-low,-front,-ATR,-reduced,+retroflex,+stress

# /l/ is unspecified for anterior & distributed because
#   it may assimilate features of a neighbor, e.g., 
#   /l/ becomes dental in "bath leaves";
#   conversely /l/ does not change the place of neighboring /sh/
l -continuant,+sonorant,+blade,-nasal
el -continuant,+sonorant,+blade,-nasal,+syllabic

# /w/
hw +continuant,+sonorant,-syllabic,+lips,+spread
wh +continuant,+sonorant,-syllabic,+lips,+spread
w +continuant,+sonorant,-syllabic,+lips,-spread

# /y/ is specifically [-anterior,+distributed] because
#   it causes a neighboring obstruent to take on those features,
#   e.g. "did you"
y +continuant,+sonorant,-syllabic,+blade,-anterior,+distributed

# /h/
hh +continuant,+sonorant,-syllabic,+glottis,+spread
hv +continuant,+sonorant,-syllabic,+glottis,+spread
q +continuant,+sonorant,-syllabic,+glottis,-spread

# Vowels
# Is there really any feature system for vowels 
#   that works as well as simply classifying the labels?
# For example, /ih/ and /ey/ have identical mid-vowel formants;
#   the main difference is the /y/ offglide on ey
# Likewise /uh/ and /ow/ have very similar mid-vowel formants.
# For these reasons, /uh/ and /ih/ are here classed as -high,-low
#   and /ah/ and /eh/ are +low.
#
ax +continuant,+sonorant,+syllabic,-front,+reduced,-retroflex,-spread
ax-h +continuant,+sonorant,+syllabic,-front,+reduced,-retroflex,+spread
ix +continuant,+sonorant,+syllabic,+front,+reduced,-retroflex,-spread
aa +continuant,+sonorant,+syllabic,+low,-high,-front,+CP,-reduced,-retroflex
ae +continuant,+sonorant,+syllabic,+low,-high,+front,+CP,-reduced,-retroflex
ah +continuant,+sonorant,+syllabic,+low,-high,-front,-CP,-reduced,-retroflex
ao +continuant,+sonorant,+syllabic,+low,-high,-front,+CP,-reduced,-retroflex
eh +continuant,+sonorant,+syllabic,+low,-high,+front,-CP,-reduced,-retroflex
ey +continuant,+sonorant,+syllabic,-low,-high,+front,+ATR,-reduced,-retroflex
ih +continuant,+sonorant,+syllabic,-low,-high,+front,-ATR,-reduced,-retroflex
iy +continuant,+sonorant,+syllabic,-low,+high,+front,+ATR,-reduced,-retroflex
ow +continuant,+sonorant,+syllabic,-low,-high,-front,+ATR,-reduced,-retroflex
uh +continuant,+sonorant,+syllabic,-low,-high,-front,-ATR,-reduced,-retroflex
uw +continuant,+sonorant,+syllabic,-low,+high,-front,+ATR,-reduced,-retroflex
ux +continuant,+sonorant,+syllabic,-low,+high,+front,+ATR,-reduced,-retroflex

# Stressed Vowels
aa+1 +continuant,+sonorant,+syllabic,+low,-high,-front,+CP,-reduced,-retroflex,+stress
ae+1 +continuant,+sonorant,+syllabic,+low,-high,+front,+CP,-reduced,-retroflex,+stress
ah+1 +continuant,+sonorant,+syllabic,+low,-high,-front,-CP,-reduced,-retroflex,+stress
ao+1 +continuant,+sonorant,+syllabic,+low,-high,-front,+CP,-reduced,-retroflex,+stress
eh+1 +continuant,+sonorant,+syllabic,+low,-high,+front,-CP,-reduced,-retroflex,+stress
ey+1 +continuant,+sonorant,+syllabic,-low,-high,+front,+ATR,-reduced,-retroflex,+stress
ih+1 +continuant,+sonorant,+syllabic,-low,-high,+front,-ATR,-reduced,-retroflex,+stress
iy+1 +continuant,+sonorant,+syllabic,-low,+high,+front,+ATR,-reduced,-retroflex,+stress
ow+1 +continuant,+sonorant,+syllabic,-low,-high,-front,+ATR,-reduced,-retroflex,+stress
uh+1 +continuant,+sonorant,+syllabic,-low,-high,-front,-ATR,-reduced,-retroflex,+stress
uw+1 +continuant,+sonorant,+syllabic,-low,+high,-front,+ATR,-reduced,-retroflex,+stress
ux+1 +continuant,+sonorant,+syllabic,-low,+high,+front,+ATR,-reduced,-retroflex,+stress