<chr_abbr type="frq" class="ss" expan="et" cert="yes">et2</chr_abbr> ot <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr><chr_var letter="s" var="long">∫</chr_var>iele <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr>fr<chr_abbr type="reg" class="dc" expan="ani" cert="no">ai-hbar</chr_abbr>m aor 