ᴹ✶[ae], [ao] became [ā]; [a{eo}] > [ā]

ᴹ✶[ae], [ao] became [ā]; [a{eo}] > [ā]

Reference ✧ PE18/46

Phonetic Rule Elements

[ae] > [ā] ✧ PE18/46 (ae > ā)
[ao] > [ā] ✧ PE18/46 (ao > ā)