diff --git a/pom.xml b/pom.xml
index 4e1eac4..f858cbc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -103,126 +103,124 @@
 	<build>
 		<sourceDirectory>${basedir}/src/main/java</sourceDirectory>
 		<outputDirectory>${basedir}/target/classes</outputDirectory>
-		<pluginManagement>
-			<plugins>
-				<!-- Formatter plugin for Eclipse based coding conventions http://maven-java-formatter-plugin.googlecode.com/svn/site/0.4/usage.html -->
-				<plugin>
-					<groupId>com.googlecode.maven-java-formatter-plugin</groupId>
-					<artifactId>maven-java-formatter-plugin</artifactId>
-					<version>0.4</version>
-					<configuration>
-						<configFile>${project.basedir}/korap-style.xml</configFile>
-						<overrideConfigCompilerVersion>true</overrideConfigCompilerVersion>
-						<compilerSource>1.7</compilerSource>
-						<compilerCompliance>1.7</compilerCompliance>
-						<compilerTargetPlatform>1.7</compilerTargetPlatform>
-					</configuration>
-				</plugin>
-				<plugin>
-					<artifactId>maven-dependency-plugin</artifactId>
-					<executions>
-						<execution>
-							<phase>install</phase>
-							<goals>
-								<goal>copy-dependencies</goal>
-							</goals>
-							<configuration>
-								<outputDirectory>${project.build.directory}/../lib</outputDirectory>
-							</configuration>
-						</execution>
-					</executions>
-				</plugin>
-				<plugin>
-					<groupId>org.apache.maven.plugins</groupId>
-					<artifactId>maven-jar-plugin</artifactId>
-					<version>2.5</version>
-					<configuration>
-						<archive>
-							<manifest>
-								<addClasspath>true</addClasspath>
-								<classpathPrefix>../lib/</classpathPrefix>
-								<mainClass>de.ids_mannheim.korap.query.serialize.QuerySerializer</mainClass>
-							</manifest>
-						</archive>
-					</configuration>
-				</plugin>
-				<plugin>
-					<!-- This plugin will help to build the ANTLR4 grammar on the fly. The 
-						recipe is based on http://stackoverflow.com/questions/15310628/ customize-maven-to-automatically-create-antlr4-grammar-java-files-on-build -->
-					<groupId>org.antlr</groupId>
-					<artifactId>antlr4-maven-plugin</artifactId>
-					<version>4.1</version>
-					<executions>
-						<execution>
-							<id>poliqarpplus</id>
-							<goals>
-								<goal>antlr4</goal>
-							</goals>
-							<configuration>
-								<sourceDirectory>${basedir}/src/main/antlr/poliqarpplus</sourceDirectory>
-								<outputDirectory>${basedir}/src/main/java/de/ids_mannheim/korap/query/parse/poliqarpplus</outputDirectory>
-								<libDirectory>${basedir}/src/main/antlr/poliqarpplus</libDirectory>
-							</configuration>
-							<phase>generate-sources</phase>
-						</execution>
-						<execution>
-							<id>annis</id>
-							<goals>
-								<goal>antlr4</goal>
-							</goals>
-							<configuration>
-								<sourceDirectory>${basedir}/src/main/antlr/annis</sourceDirectory>
-								<outputDirectory>${basedir}/src/main/java/de/ids_mannheim/korap/query/parse/annis</outputDirectory>
-								<libDirectory>${basedir}/src/main/antlr/annis</libDirectory>
-							</configuration>
-							<phase>generate-sources</phase>
-						</execution>
-						<execution>
-							<id>collection</id>
-							<goals>
-								<goal>antlr4</goal>
-							</goals>
-							<configuration>
-								<sourceDirectory>${basedir}/src/main/antlr/collection</sourceDirectory>
-								<outputDirectory>${basedir}/src/main/java/de/ids_mannheim/korap/query/parse/collection</outputDirectory>
-								<libDirectory>${basedir}/src/main/antlr/collection</libDirectory>
-							</configuration>
-							<phase>generate-sources</phase>
-						</execution>
-					</executions>
-				</plugin>
-				<plugin>
-					<!-- This plugin will help to build the ANTLR3 grammar on the fly. The 
-						recipe is based on http://stackoverflow.com/questions/15310628/ customize-maven-to-automatically-create-antlr4-grammar-java-files-on-build -->
-					<groupId>org.antlr</groupId>
-					<artifactId>antlr3-maven-plugin</artifactId>
-					<version>3.5.1</version>
-					<configuration>
-						<sourceDirectory>${basedir}/src/main/antlr/cosmas</sourceDirectory>
-						<outputDirectory>${basedir}/src/main/java/de/ids_mannheim/korap/query/parse/cosmas</outputDirectory>
-						<libDirectory>${basedir}/src/main/antlr</libDirectory>
-					</configuration>
+		<plugins>
+			<!-- Formatter plugin for Eclipse based coding conventions http://maven-java-formatter-plugin.googlecode.com/svn/site/0.4/usage.html -->
+			<plugin>
+				<groupId>com.googlecode.maven-java-formatter-plugin</groupId>
+				<artifactId>maven-java-formatter-plugin</artifactId>
+				<version>0.4</version>
+				<configuration>
+					<configFile>${project.basedir}/korap-style.xml</configFile>
+					<overrideConfigCompilerVersion>true</overrideConfigCompilerVersion>
+					<compilerSource>1.7</compilerSource>
+					<compilerCompliance>1.7</compilerCompliance>
+					<compilerTargetPlatform>1.7</compilerTargetPlatform>
+				</configuration>
+			</plugin>
+			<plugin>
+				<artifactId>maven-dependency-plugin</artifactId>
+				<executions>
+					<execution>
+						<phase>install</phase>
+						<goals>
+							<goal>copy-dependencies</goal>
+						</goals>
+						<configuration>
+							<outputDirectory>${project.build.directory}/../lib</outputDirectory>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-jar-plugin</artifactId>
+				<version>2.5</version>
+				<configuration>
+					<archive>
+						<manifest>
+							<addClasspath>true</addClasspath>
+							<classpathPrefix>../lib/</classpathPrefix>
+							<mainClass>de.ids_mannheim.korap.query.serialize.QuerySerializer</mainClass>
+						</manifest>
+					</archive>
+				</configuration>
+			</plugin>
+			<plugin>
+				<!-- This plugin will help to build the ANTLR4 grammar on the fly. The 
+					recipe is based on http://stackoverflow.com/questions/15310628/ customize-maven-to-automatically-create-antlr4-grammar-java-files-on-build -->
+				<groupId>org.antlr</groupId>
+				<artifactId>antlr4-maven-plugin</artifactId>
+				<version>4.1</version>
+				<executions>
+					<execution>
+						<id>poliqarpplus</id>
+						<goals>
+							<goal>antlr4</goal>
+						</goals>
+						<configuration>
+							<sourceDirectory>${basedir}/src/main/antlr/poliqarpplus</sourceDirectory>
+							<outputDirectory>${basedir}/src/main/java/de/ids_mannheim/korap/query/parse/poliqarpplus</outputDirectory>
+							<libDirectory>${basedir}/src/main/antlr/poliqarpplus</libDirectory>
+						</configuration>
+						<phase>generate-sources</phase>
+					</execution>
+					<execution>
+						<id>annis</id>
+						<goals>
+							<goal>antlr4</goal>
+						</goals>
+						<configuration>
+							<sourceDirectory>${basedir}/src/main/antlr/annis</sourceDirectory>
+							<outputDirectory>${basedir}/src/main/java/de/ids_mannheim/korap/query/parse/annis</outputDirectory>
+							<libDirectory>${basedir}/src/main/antlr/annis</libDirectory>
+						</configuration>
+						<phase>generate-sources</phase>
+					</execution>
+					<execution>
+						<id>collection</id>
+						<goals>
+							<goal>antlr4</goal>
+						</goals>
+						<configuration>
+							<sourceDirectory>${basedir}/src/main/antlr/collection</sourceDirectory>
+							<outputDirectory>${basedir}/src/main/java/de/ids_mannheim/korap/query/parse/collection</outputDirectory>
+							<libDirectory>${basedir}/src/main/antlr/collection</libDirectory>
+						</configuration>
+						<phase>generate-sources</phase>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<!-- This plugin will help to build the ANTLR3 grammar on the fly. The 
+					recipe is based on http://stackoverflow.com/questions/15310628/ customize-maven-to-automatically-create-antlr4-grammar-java-files-on-build -->
+				<groupId>org.antlr</groupId>
+				<artifactId>antlr3-maven-plugin</artifactId>
+				<version>3.5.1</version>
+				<configuration>
+					<sourceDirectory>${basedir}/src/main/antlr/cosmas</sourceDirectory>
+					<outputDirectory>${basedir}/src/main/java/de/ids_mannheim/korap/query/parse/cosmas</outputDirectory>
+					<libDirectory>${basedir}/src/main/antlr</libDirectory>
+				</configuration>
 
-					<executions>
-						<execution>
-							<goals>
-								<goal>antlr</goal>
-							</goals>
-							<phase>generate-sources</phase>
-						</execution>
-					</executions>
+				<executions>
+					<execution>
+						<goals>
+							<goal>antlr</goal>
+						</goals>
+						<phase>generate-sources</phase>
+					</execution>
+				</executions>
 
-				</plugin>
-				<plugin>
-					<artifactId>maven-compiler-plugin</artifactId>
-					<version>2.3.2</version>
-					<configuration>
-						<source>1.7</source>
-						<target>1.7</target>
-						<!-- excludes> <exclude>**/CosmasTree.java</exclude> </excludes -->
-					</configuration>
-				</plugin>
-			</plugins>
-		</pluginManagement>
+			</plugin>
+			<plugin>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>2.3.2</version>
+				<configuration>
+					<source>1.7</source>
+					<target>1.7</target>
+					<!-- excludes> <exclude>**/CosmasTree.java</exclude> </excludes -->
+				</configuration>
+			</plugin>
+		</plugins>
 	</build>
 </project>
diff --git a/src/main/java/de/ids_mannheim/korap/query/serialize/Cosmas2QueryProcessor.java b/src/main/java/de/ids_mannheim/korap/query/serialize/Cosmas2QueryProcessor.java
index c8cc39f..5f4dfe8 100644
--- a/src/main/java/de/ids_mannheim/korap/query/serialize/Cosmas2QueryProcessor.java
+++ b/src/main/java/de/ids_mannheim/korap/query/serialize/Cosmas2QueryProcessor.java
@@ -599,10 +599,8 @@
                         || openNodeCats.get(1).equals("OPEND") 
                         || inOPALL 
                         || openNodeCats.get(1).equals("OPNHIT"))) {
-                    System.err.println(classCounter);
                     wrapOperandInClass(node, 1, 128+classCounter);
                     wrapOperandInClass(node, 2, 128+classCounter);
-                    System.err.println(classCounter);
                     // Deactivated, uncomment to wrap sequence in reference.
                     //            group = KoralObjectGenerator.wrapInReference(group,
                     //                    classCounter++);