diff --git a/dump-schema/src/main/java/eu/dnetlib/dhp/eosc/model/Relation.java b/dump-schema/src/main/java/eu/dnetlib/dhp/eosc/model/Relation.java
index 31ee0ac..91ce474 100644
--- a/dump-schema/src/main/java/eu/dnetlib/dhp/eosc/model/Relation.java
+++ b/dump-schema/src/main/java/eu/dnetlib/dhp/eosc/model/Relation.java
@@ -25,6 +25,17 @@ public class Relation implements Serializable {
 	@JsonSchema(description = "The reason why OpenAIRE holds the relation ")
 	private Provenance provenance;
 
+	@JsonSchema(description = "The result type of the target for this relation")
+	private String targetType;
+
+	public String getTargetType() {
+		return targetType;
+	}
+
+	public void setTargetType(String targetType) {
+		this.targetType = targetType;
+	}
+
 	public String getSource() {
 		return source;
 	}
diff --git a/dump/src/main/java/eu/dnetlib/dhp/oa/graph/dump/eosc/SparkSelectRelation.java b/dump/src/main/java/eu/dnetlib/dhp/oa/graph/dump/eosc/SparkSelectRelation.java
index d7be673..6f02871 100644
--- a/dump/src/main/java/eu/dnetlib/dhp/oa/graph/dump/eosc/SparkSelectRelation.java
+++ b/dump/src/main/java/eu/dnetlib/dhp/oa/graph/dump/eosc/SparkSelectRelation.java
@@ -78,36 +78,46 @@ public class SparkSelectRelation implements Serializable {
 				(FilterFunction<Relation>) r -> !r.getDataInfo().getDeletedbyinference()
 					&& !removeSet.contains(r.getRelClass()));
 
-		Dataset<String> resultIds = Utils
+		Dataset<Tuple2<String, String>> resultIds = Utils
 			.readPath(spark, outputPath + "/publication", Result.class)
 
-			.map((MapFunction<Result, String>) p -> p.getId(), Encoders.STRING())
+			.map(
+				(MapFunction<Result, Tuple2<String, String>>) p -> new Tuple2<>(p.getId(), p.getType()),
+				Encoders.tuple(Encoders.STRING(), Encoders.STRING()))
 			.union(
 				Utils
 					.readPath(spark, outputPath + "/dataset", Result.class)
 
-					.map((MapFunction<Result, String>) d -> d.getId(), Encoders.STRING()))
+					.map(
+						(MapFunction<Result, Tuple2<String, String>>) d -> new Tuple2<>(d.getId(), d.getType()),
+						Encoders.tuple(Encoders.STRING(), Encoders.STRING())))
 			.union(
 				Utils
 					.readPath(spark, outputPath + "/software", Result.class)
 
-					.map((MapFunction<Result, String>) s -> s.getId(), Encoders.STRING()))
+					.map(
+						(MapFunction<Result, Tuple2<String, String>>) s -> new Tuple2<>(s.getId(), s.getType()),
+						Encoders.tuple(Encoders.STRING(), Encoders.STRING())))
 			.union(
 				Utils
 					.readPath(spark, outputPath + "/otherresearchproduct", Result.class)
 
-					.map((MapFunction<Result, String>) o -> o.getId(), Encoders.STRING()));
+					.map(
+						(MapFunction<Result, Tuple2<String, String>>) o -> new Tuple2<>(o.getId(), o.getType()),
+						Encoders.tuple(Encoders.STRING(), Encoders.STRING())));
 
 		// select result -> result relations
 		Dataset<Relation> relResultResult = relation
-			.joinWith(resultIds, relation.col("source").equalTo(resultIds.col("value")))
-			.map((MapFunction<Tuple2<Relation, String>, Relation>) t2 -> t2._1(), Encoders.bean(Relation.class));
+			.joinWith(resultIds, relation.col("source").equalTo(resultIds.col("_1")))
+			.map(
+				(MapFunction<Tuple2<Relation, Tuple2<String, String>>, Relation>) t2 -> t2._1(),
+				Encoders.bean(Relation.class));
 
 		relResultResult
-			.joinWith(resultIds, relResultResult.col("target").equalTo(resultIds.col("value")))
-			.map((MapFunction<Tuple2<Relation, String>, Relation>) t2 -> t2._1(), Encoders.bean(Relation.class))
-			.map((MapFunction<Relation, eu.dnetlib.dhp.eosc.model.Relation>) rel -> {
+			.joinWith(resultIds, relResultResult.col("target").equalTo(resultIds.col("_1")))
+			.map((MapFunction<Tuple2<Relation, Tuple2<String, String>>, eu.dnetlib.dhp.eosc.model.Relation>) t2 -> {
 				eu.dnetlib.dhp.eosc.model.Relation relNew = new eu.dnetlib.dhp.eosc.model.Relation();
+				Relation rel = t2._1();
 				relNew
 					.setSource(
 
@@ -124,6 +134,7 @@ public class SparkSelectRelation implements Serializable {
 							.newInstance(
 								rel.getRelClass(),
 								rel.getSubRelType()));
+				relNew.setTargetType(t2._2()._2());
 
 				Optional<DataInfo> odInfo = Optional.ofNullable(rel.getDataInfo());
 				if (odInfo.isPresent()) {