
I know that the answer to the question "Which letter is mentioned by itself in both Eastern Catalan and Alguerese?" is in "In Eastern Catalan (except Majorcan), unstressed vowels reduce to three: /a e ɛ/ > [ə]; /o ɔ u/ > [u]; /i/ remains distinct. There are a few instances of unreduced [e], [o] in some words. Alguerese has lowered [ə] to [a].". Can you tell me what it is? 


[ə]
