</span><span class="special">)</span> <span class="special">&lt;&lt;</span>
            <span class="char">'b'</span></code> and <code class="computeroutput"><span class="char">'a'</span>
            <span class="special">&lt;&lt;</span> <span class="identifier">lit</span><span class="special">(</span><span class="char">'b'</span><span class="special">)</span></code>
            are Spirit sequence generators for the letter <code class="computeroutput"><span class="char">'a'</span></code>
            follow