<chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> di<chr_var letter="s" var="long">∫</chr_var>t <chr_var letter="s" var="long">∫</chr_var>ire mout ai g<chr_abbr type="reg" class="sc" expan="rant" cert="no">nt-alpha</chr_abbr> ioi <chr_var letter="E" var="2">E2</chr_var>. 