Assertion: latin alphabet's letter | /r/HasProperty | restored
Facets:
Source sentences:
text: Two obsolete letters were restored: ⟨ㅿ⟩ (리읃), which was used to indicate an alternation in pronunciation between initial /l/ and final /d/; and ⟨ㆆ⟩ (히으), which was only pronounced between vowels.