public Feature(float[] featureData, int ID, Utterance utterance) { super(utterance); this.featureData = featureData; this.type = null; this.ID = ID;
public Feature(float[] featureData, int ID) { this(featureData, ID, null);
    public Feature(float[] featureData, int ID, Utterance utterance) {        super(utterance);        this.featureData = featureData;	this.type = null;        this.ID = ID;    }