https://www.scielo.org.mx/img/revistas/estfro/v15n29/html/a1c1.html
a1c1
a1c1
https://www.fileformat.info/info/unicode/char/a1c1/charset_support.htm
Character sets that support Unicode Character 'YI SYLLABLE LA' (U+A1C1)
character setsyi syllablesupportunicodea1c1