public ParseTree get(String label) {List<ParseTree> parseTrees = labels.get(label);if ( parseTrees==null || parseTrees.size()==0 ) {return null;}return parseTrees.get( parseTrees.size()-1 ); }

public virtual IParseTree Get(string label){IList<IParseTree> parseTrees = labels.Get(label);if (parseTrees == null || parseTrees.Count == 0){return null;}return parseTrees[parseTrees.Count - 1];}
