> implements
            an 'inverse' symbol table: an associative container (or map) of key-value
            pairs where the values are (most of the time) strings. It maps the value
            to be generated (the key) to any other value which will be emitted instead
            of the original key.
          </p>
<p>
            The Karma symbol table class <code class="computeroutput"><span class="identifier">symbols</span></code>
            is-a generator, an instance of which may be used anywhere in