diff --git a/src/main/java/w2phtml/rdf/RDFConverter.java b/src/main/java/w2phtml/rdf/RDFConverter.java
index e991ccc..ad6d5dc 100644
--- a/src/main/java/w2phtml/rdf/RDFConverter.java
+++ b/src/main/java/w2phtml/rdf/RDFConverter.java
@@ -2,39 +2,8 @@ package w2phtml.rdf;
 
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.StringWriter;
-import java.util.HashMap;
-import java.util.Iterator;
 
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.parsers.ParserConfigurationException;
-import javax.xml.stream.events.Namespace;
-import javax.xml.transform.OutputKeys;
-import javax.xml.transform.Transformer;
-import javax.xml.transform.TransformerConfigurationException;
-import javax.xml.transform.TransformerException;
-import javax.xml.transform.TransformerFactory;
-import javax.xml.transform.TransformerFactoryConfigurationError;
-import javax.xml.transform.dom.DOMSource;
-import javax.xml.transform.stream.StreamResult;
-
-import org.apache.jena.rdf.model.Model;
-import org.apache.jena.rdf.model.ModelFactory;
-import org.apache.jena.rdf.model.Property;
-import org.apache.jena.rdf.model.Resource;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-import org.w3c.dom.Node;
-import org.w3c.dom.NodeList;
-import org.w3c.dom.ls.DOMImplementationLS;
-import org.w3c.dom.ls.LSSerializer;
-
-import com.sun.org.apache.xml.internal.utils.NameSpace;
-
-import pro.litvinovg.xml.Debug;
 import w2phtml.api.ConverterResult;
-import w2phtml.api.OutputFile;
 import w2phtml.base.ConverterResultImpl;
 import w2phtml.xhtml.Converter;
 import w2phtml.xhtml.XhtmlDocument;