L i grauer<chr_var letter="s" var="long">∫</chr_var> fu <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> biax <chr_abbr type="frq" class="ss" expan="et" cert="yes">et1</chr_abbr> gen<chr_var letter="s" var="long">∫</chr_var> 