Background: Some linguists restrict the double-dot subscript ⟨◌̤⟩ to murmured sonorants, such as vowels and nasals, which are murmured throughout their duration, and use the superscript hook-aitch ⟨◌ʱ⟩ for the breathy-voiced release of obstruents.
Question: What do some linguists restrict the double-dot subscript ⟨◌̤⟩ to?
Answer:<extra_id_0>.
<extra_id_0> murmured sonorants<extra_id_1>