::vowel:: = ə|ɑ|ɪ|i|ʊ|u|e|ɛ|o|ɔ
::consonant:: = s|ɦ|k|kʰ|ɡ|k|ŋ|t͡ʃ|t͡ʃʰ|d͡ʒ|t͡ʃ|ɲ|ʈ|ʈʰ|ɖ|ʈ|ɳ|t̪|t̪ʰ|d̪|t̪|n|p|pʰ|b|p|m|j|ɾ|l|ʋ|ɽ|ʃ|x|ɣ|z|f|ɭ

% ə　→ 0/_V
ə -> 0 / _ (::vowel::)

% ə　→ 0/_#
ə -> 0 / _ #

% ə　→ 0/VC_CV
ə -> 0 / (::vowel::)(::consonant::) _ (::consonant::)(::vowel::)

% Virama
(::vowel::)੍ -> 0 / _

% Addak
(?P<sw1><GEM>)(?P<sw2>(::consonant::)) -> 0 / _
<GEM> -> ː / _