/// <summary>
/// Returns a new
/// <c>SemanticGraph</c>
/// constructed from a given
/// <see cref="Edu.Stanford.Nlp.Trees.Tree"/>
/// with given options.
/// This factory method is intended to replace a profusion of highly similar
/// factory methods, such as
/// <c>typedDependencies()</c>
/// ,
/// <c>typedDependenciesCollapsed()</c>
/// ,
/// <c>allTypedDependencies()</c>
/// ,
/// <c>allTypedDependenciesCollapsed()</c>
/// , etc.
/// For a fuller explanation of the meaning of the boolean arguments, see
/// <see cref="Edu.Stanford.Nlp.Trees.GrammaticalStructure"/>
/// .
/// </summary>
/// <param name="tree">A tree representing a phrase structure parse</param>
/// <param name="includeExtras">
/// Whether to include extra dependencies, which may
/// result in a non-tree
/// </param>
/// <param name="filter">A filter to exclude certain dependencies; ignored if null</param>
/// <param name="originalDependencies">
/// generate original Stanford dependencies instead of new
/// Universal Dependencies
/// </param>
/// <returns>A SemanticGraph</returns>
public static SemanticGraph MakeFromTree(Tree tree, SemanticGraphFactory.Mode mode, GrammaticalStructure.Extras includeExtras, IPredicate <TypedDependency> filter, bool originalDependencies, bool includePunctuationDependencies)
{
GrammaticalStructure gs;
if (originalDependencies)
{
IPredicate <string> wordFilt;
if (includePunctuationDependencies)
{
wordFilt = Filters.AcceptFilter();
}
else
{
wordFilt = new PennTreebankLanguagePack().PunctuationWordRejectFilter();
}
gs = new EnglishGrammaticalStructure(tree, wordFilt, new SemanticHeadFinder(true));
}
else
{
IPredicate <string> tagFilt;
if (includePunctuationDependencies)
{
tagFilt = Filters.AcceptFilter();
}
else
{
tagFilt = new PennTreebankLanguagePack().PunctuationTagRejectFilter();
}
gs = new UniversalEnglishGrammaticalStructure(tree, tagFilt, new UniversalSemanticHeadFinder(true));
}
return(MakeFromTree(gs, mode, includeExtras, filter));
}
// static main
private static GrammaticalStructure SemanticGraphToGrammaticalStructure(SemanticGraph sg)
{
/* sg.typedDependency() generates an ArrayList */
IList <TypedDependency> deps = (IList <TypedDependency>)sg.TypedDependencies();
IndexedWord root = deps[0].Gov();
TreeGraphNode rootNode = new TreeGraphNode(root);
GrammaticalStructure gs = new UniversalEnglishGrammaticalStructure(deps, rootNode);
return(gs);
}
