O <chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var> d<chr_abbr type="reg" class="dc" expan="ius" cert="no">i-nine</chr_abbr> nefi<chr_var letter="s" var="long">∫</chr_var>t <chr_abbr type="frq" class="ct" expan="cheualier" cert="no">ch[apost]r</chr_abbr> 