ᴱQ. [xʷ] became [kʷ] after voiceless stops; [{tʲptk}xʷ] > [{tʲptk}kʷ]

⚠️ᴱQ. [xʷ] became [kʷ] after voiceless stops; [{tʲptk}xʷ] > [{tʲptk}kʷ]
@@@ can this generalize?

Reference ✧ PE12/17

Phonetic Rule Elements

[{tʲptk}xʷ] > [{tʲptk}kʷ] ✧ PE12/17 (voiceless stops + x͡w > q)