https://en.wikipedia.org/wiki/Mary_Untier_of_Knots
Mary, Untier of Knots - Wikipedia
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https://thesaurus.yourdictionary.com/untier
Untier Synonyms: 3 Synonyms and Antonyms for Untier | YourDictionary.com
Synonyms for UNTIER: undoer, opener, unfastener.
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