diff --git a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/graph/SparkExtractRelationFromEntities.java b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/graph/SparkExtractRelationFromEntities.java
index b165fbb14..f910dbee4 100644
--- a/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/graph/SparkExtractRelationFromEntities.java
+++ b/dhp-workflows/dhp-graph-mapper/src/main/java/eu/dnetlib/dhp/oa/graph/dump/graph/SparkExtractRelationFromEntities.java
@@ -1,6 +1,4 @@
-/**
- * Spark job that fires the extraction of relations from entities
- */
+
 package eu.dnetlib.dhp.oa.graph.dump.graph;
 
 import java.io.Serializable;
@@ -16,6 +14,9 @@ import eu.dnetlib.dhp.oa.graph.dump.Utils;
 import eu.dnetlib.dhp.oa.graph.dump.community.CommunityMap;
 import eu.dnetlib.dhp.schema.oaf.Result;
 
+/**
+ * Spark job that fires the extraction of relations from entities
+ */
 public class SparkExtractRelationFromEntities implements Serializable {
 	private static final Logger log = LoggerFactory.getLogger(SparkExtractRelationFromEntities.class);