iv class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"></span>        std::unordered_map&lt;std::string, std::string&gt; word_to_ind_;</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;        std::unordered_map&lt;std::string, std::string&gt; ind_to_word_;</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;        <span class="keywordtype">size_t</span> V_;</div>
<div class="line"><a name="l00030">