 set the <code>incude_duplicates</code> parameter to <code>FALSE</code> in the <code><a href="../reference/get_classifications.html">get_classifications()</a></code> function. By default both the <code>crowdsource</code> and <code>leeklab</code> lexicons will be output. To get just one, specify the <code>lexicon</code> parameter. Here we will merge in the <code>crowdsource</code> lexicon, picking the most prevalent classification by setting the <code>incude_duplicates</code> parameter to <code>FALSE</code>.