private Collection<TypedDependency> getDependencies(Tree sentenceParseTree) {
final TreebankLanguagePack tlp = new PennTreebankLanguagePack();
final GrammaticalStructureFactory gsf = tlp.grammaticalStructureFactory();
final GrammaticalStructure gs = gsf.newGrammaticalStructure(sentenceParseTree);
return gs.typedDependenciesCollapsed();
}
