<chr_var letter="S" var="1">S1</chr_var> i <chr_var letter="s" var="long">∫</chr_var>achemin<chr_abbr type="reg" class="dc" expan="en" cert="no">e-hbar</chr_abbr>t <chr_abbr type="reg" class="sc" expan="tre" cert="no">t-e</chr_abbr><chr_var letter="s" var="long">∫</chr_var>tuit <chr_abbr type="reg" class="sc" expan="tro" cert="no">t-o</chr_abbr>i. 