text: public virtual string[] Lemmatize(string[] words, string[] postags){string[] lemmas = null;string[] maxEntLemmas = null;if (dictionaryLemmatizer != null){lemmas = dictionaryLemmatizer.lemmatize(words, postags);for (int i = 0; i < lemmas.Length; ++i){if (lemmas[i].Equals("O")){   if (lemmatizerME != null){  if (maxEntLemmas == null){maxEntLemmas = lemmatizerME.lemmatize(words, postags);}if ("_".Equals(maxEntLemmas[i])){lemmas[i] = words[i];    }else{lemmas[i] = maxEntLemmas[i];}}else{                     lemmas[i] = words[i];      }}}}else{                           maxEntLemmas = lemmatizerME.lemmatize(words, postags);for (int i = 0; i < maxEntLemmas.Length; ++i){if ("_".Equals(maxEntLemmas[i])){maxEntLemmas[i] = words[i];  }}lemmas = maxEntLemmas;}return lemmas;}