public static PartOfSpeech newWordInstance(PennTreeBankWordTagset tag,
String text) {
PartOfSpeech partOfSpeech = null;
switch (tag) {
case VB:
partOfSpeech = new VerbBase(text);
break;
case VBZ:
partOfSpeech = new VerbThirdPersonSingularPresent(text);
break;
case VBP: