="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;Sa By G</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;\begin{equation}</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    [S_{{a}}]=\sage{Sa_by_g}</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;\end{equation}</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;</div>
<div class="line"><a name="l0009