\myfdentry{U}{fxb21}{m}{n}
\myfdentry{U}{fxb21}{m}{it}
\myfdentry{U}{fxb21}{m}{sl}
\myfdentry{U}{fxb21}{b}{n}
\myfdentry{U}{fxb21}{b}{sl}
\myfdentry{U}{fxb21}{o}{n}
\myfdentry{U}{fxb21}{o}{it}
\myfdentry{U}{fxb21}{o}{b}
\myfdentry{U}{fxb21}{s}{n}
\myfdentry{U}{fxb21}{s}{it}
\myfdentry{U}{fxb21}{s}{b}