Task: Question Answering
Input (English): Passage: 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 uses the ⟨◌ʱ⟩?
Output (English): breathy-voiced release of obstruents.