Java Passive Detection

Properties props = new Properties();
props.put("parse.flags", "");
props.put("pos.model", "lib/stanford-postagger-full-2013-06-20/models/english-left3words-distsim.tagger");
props.put("annotators", "tokenize, ssplit, pos, lemma, parse");
props.put("parse.model", "edu/stanford/nlp/models/lexparser/englishPCFG.ser.gz");

StanfordCoreNLP pipeline = new StanfordCoreNLP(props);
Annotation document = new Annotation("The dog was taken for a walk.");
pipeline.annotate(document);

List<CoreMap> sentences = document.get(SentencesAnnotation.class);

for (CoreMap sentence: sentences)
{
    Tree tree = sentence.get(TreeAnnotation.class);
    TreebankLanguagePack languagePack = new PennTreebankLanguagePack();
    Collection<TypedDependency> typedDependencies = languagePack.grammaticalStructureFactory().newGrammaticalStructure(tree).typedDependenciesCollapsed();

    for(TypedDependency tdep : typedDependencies)
    {
        System.out.println("reln: " + tdep.reln());
    }
}