<chr_var letter="Q" var="2">Q2</chr_var> <chr_abbr type="reg" class="sc" expan="ntra" cert="no">nt-alpha</chr_abbr> del couchier fu tan<chr_var letter="s" var="long">∫</chr_var> <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> leu<chr_var letter="s" var="long">∫</chr_var> 