S an<chr_var letter="s" var="long">∫</chr_var> tace <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr><chr_var letter="s" var="long">∫</chr_var>an<chr_var letter="s" var="long">∫</chr_var> de<chr_var letter="s" var="long">∫</chr_var>auen<chr_abbr type="reg" class="dc" expan="ant" cert="no">at-hbar</chr_abbr> 