import com.thinkaurelius.titan.core.TitanGraph;
import com.thinkaurelius.titan.core.TitanGraphQuery;
import com.thinkaurelius.titan.core.TitanVertex;
-//import com.tinkerpop.blueprints.Direction;
-//import com.tinkerpop.blueprints.Edge;
-//import com.tinkerpop.blueprints.Vertex;
-//import com.tinkerpop.blueprints.util.ElementHelper;
-//import com.tinkerpop.blueprints.util.io.graphson.GraphSONReader;
-//import com.tinkerpop.blueprints.util.io.graphson.GraphSONWriter;
public class GraphMLConverter {