diff --git a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/TupleWrapper.java b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/TupleWrapper.java
new file mode 100644
index 0000000000..c23a7f550a
--- /dev/null
+++ b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/TupleWrapper.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2024.
+ * SPDX-FileCopyrightText: © 2023 Consiglio Nazionale delle Ricerche
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+package eu.dnetlib.dhp.oa.provision.model;
+
+import java.io.Serializable;
+
+public class TupleWrapper implements Serializable {
+
+	private String xml;
+
+	private String json;
+
+	public TupleWrapper() {
+	}
+
+	public TupleWrapper(String xml, String json) {
+		this.xml = xml;
+		this.json = json;
+	}
+
+	public String getXml() {
+		return xml;
+	}
+
+	public void setXml(String xml) {
+		this.xml = xml;
+	}
+
+	public String getJson() {
+		return json;
+	}
+
+	public void setJson(String json) {
+		this.json = json;
+	}
+}