<chr_abbr type="frq" class="ss" expan="et" cert="yes">et2</chr_abbr> loig. <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> pre<chr_var letter="s" var="long">∫</chr_var>. <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> ci. <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> la. 