//Count MWE statistics
TregexMatcher m = pMWE.matcher(t);
while(m.findNextMatchingNode()) {
Tree match = m.getMatch();
String label = match.value();
List<CoreLabel> yield = match.taggedLabeledYield();
StringBuilder termYield = new StringBuilder();
StringBuilder posYield = new StringBuilder();
for(CoreLabel cl : yield) {
termYield.append(cl.word()).append(" ");
posYield.append(cl.tag()).append(" ");