Rolf Bremmer
... that Leiden University's Rolf Bremmer, an expert on Old Frisian language, published an alphabet book explaining the Christian aspects of concepts such as sin and foreskin?
... that <a href="./Leiden_University" id="mwBN0" rel="mw:WikiLink" title="Leiden University">Leiden University</a>'s <b id="mwBN4"><a href="./Rolf_Bremmer" id="mwBN8" rel="mw:WikiLink" title="Rolf Bremmer">Rolf Bremmer</a></b>, an expert on <a href="./Old_Frisian" id="mwBOA" rel="mw:WikiLink" title="Old Frisian">Old Frisian</a> language, published an <a href="./Alphabet_book" id="mwBOE" rel="mw:WikiLink" title="Alphabet book">alphabet book</a> explaining the Christian aspects of concepts such as <a href="./Sin" id="mwBOI" rel="mw:WikiLink" title="Sin">sin</a> and <a href="./Foreskin" id="mwBOM" rel="mw:WikiLink" title="Foreskin">foreskin</a>?