code: public synchronized static String lemmatize(String text, String posTag) {
          LemmataEntry lemmata = getLemmatizer().lemmatizeByLexiconAndRules(text,
                  posTag);
  
          Collection<edu.ucdenver.ccp.nlp.biolemmatizer.LemmataEntry.Lemma> lemmas = lemmata
                  .getLemmas();
          if (!lemmas.isEmpty()) {
              edu.ucdenver.ccp.nlp.biolemmatizer.LemmataEntry.Lemma lemma = lemmas
                      .iterator().next();
              return lemma.getLemma();
          } else {
              return null;
          }
      }
docs: Just pick the first lemma (if any)