double[] chunkProps;
if(tagger != null){
posTags = new String[tokens.length][];
posProbs = new double[tokens.length][];
//get the topK POS tags and props and copy it over to the 2dim Arrays
Sequence[] posSequences = tagger.topKSequences(tokens);
//extract the POS tags and props for the current token from the
//posSequences.
//NOTE: Sequence includes always POS tags for all Tokens. If
// less then posSequences.length are available it adds the
// best match for all followings.