Unaspirated or tenuis consonants are occasionally marked with the modifier letter for unaspiration ⟨◌˭⟩, a superscript equal sign: ⟨t˭⟩. Usually, however, unaspirated consonants are left unmarked: ⟨t⟩.
Aspirated or tenuis consonants are occasionally marked how?
{'text': 'with the modifier letter for unaspiration', 'answer_start': 57}