*
* @param lemmaString String that specifies the base form.
*/
public final void setLemmaString(final String lemmaString) {
if (!StringTools.isEmpty(lemmaString)) {
formattedToken = new AnalyzedTokenReadings(new AnalyzedToken(lemmaString,
posTag, lemmaString), 0);
staticLemma = true;
postagRegexp = true;
if (posTag != null) {
pPosRegexMatch = Pattern.compile(posTag);