exploring coreferences from Stanford CoreNLP

main.java

Map<Integer, CorefChain> graph = document.get(CorefChainAnnotation.class);
for (Map.Entry<Integer, CorefChain> entry : graph.entrySet()) {
    CorefChain c = entry.getValue();
    System.out.println("\nClusterID: " + entry.getKey());
    CorefMention cm = c.getRepresentativeMention();
    if (cm != null) {
        System.out.println("Representative Mention: " + cm.mentionSpan + " @" + cm.position.elems()[0] + " H:" + cm.position.elems()[1] +  " [ " + cm.startIndex + ", " + cm.endIndex + "]");
        List<CorefMention> cms = c.getCorefMentions();
	System.out.print("Mentions:\n");
        for (CorefMention mention : cms) {
	    System.out.print("\t" + mention.mentionSpan + " @" + mention.sentNum + " [" + mention.startIndex + ", " + mention.endIndex + "]");
        }