diff --git a/src/test/java/de/ids_mannheim/korap/query/TestSpanRelationQueryJSON.java b/src/test/java/de/ids_mannheim/korap/query/TestSpanRelationQueryJSON.java
index b051509..3ba5a66 100644
--- a/src/test/java/de/ids_mannheim/korap/query/TestSpanRelationQueryJSON.java
+++ b/src/test/java/de/ids_mannheim/korap/query/TestSpanRelationQueryJSON.java
@@ -12,6 +12,47 @@
 public class TestSpanRelationQueryJSON {
 
     @Test
+    public void testMatchAnyRelationSourceWithAttribute() throws QueryException {
+        String filepath = getClass().getResource(
+                "/queries/relation/any-source-with-attribute.json").getFile();
+        SpanQueryWrapper sqwi = getJSONQuery(filepath);
+        SpanQuery sq = sqwi.toQuery();
+        assertEquals(
+                "focus(#[1,2]spanSegment(focus(#2: spanSegment(spanRelation(tokens:>:mate/d:HEAD), "
+                        + "spanElementWithAttribute(<tokens:c: />, spanAttribute(tokens:type:case:accusative)))), "
+                        + "<tokens:c:vp />))", sq.toString());
+    }
+
+    @Test
+    public void testMatchSpecificRelationSourceWithAttribute()
+            throws QueryException {
+        String filepath = getClass().getResource(
+                "/queries/relation/specific-source-with-attribute.json")
+                .getFile();
+        SpanQueryWrapper sqwi = getJSONQuery(filepath);
+        SpanQuery sq = sqwi.toQuery();
+        assertEquals(
+                "focus(#[1,2]spanSegment(focus(#2: spanSegment(spanRelation(tokens:>:mate/d:HEAD), "
+                        + "spanElementWithAttribute(<tokens:c:np />, spanAttribute(tokens:type:case:accusative)))), "
+                        + "<tokens:c:vp />))", sq.toString());
+    }
+
+    @Test
+    public void testMatchAnyRelationNodeWithAttribute() throws QueryException {
+        String filepath = getClass().getResource(
+                "/queries/relation/any-node-with-attribute.json").getFile();
+        SpanQueryWrapper sqwi = getJSONQuery(filepath);
+        SpanQuery sq = sqwi.toQuery();
+        assertEquals(
+                "focus(#[1,2]spanSegment(focus(#2: spanSegment(spanRelation(tokens:>:mate/d:HEAD), "
+                        + "spanElementWithAttribute(<tokens:c: />, spanAttribute(tokens:type:case:accusative)))), "
+                        + "spanElementWithAttribute(<tokens:c: />, spanAttribute(tokens:type:case:accusative))))",
+                sq.toString());
+
+        System.out.println(sq.toString());
+    }
+
+    @Test
     public void testMatchRelationSource () throws QueryException {
         //
         String filepath = getClass().getResource(
diff --git a/src/test/resources/queries/relation/any-node-with-attribute.json b/src/test/resources/queries/relation/any-node-with-attribute.json
new file mode 100644
index 0000000..f83118f
--- /dev/null
+++ b/src/test/resources/queries/relation/any-node-with-attribute.json
@@ -0,0 +1,40 @@
+{
+    "query": {
+        "@type": "koral:group",
+        "operation": "operation:relation",
+        "operands": [
+            {
+                "@type": "koral:span",
+                "layer": "c",                
+                "match": "match:eq",
+                "attr": {
+		            "@type": "koral:term",
+		            "layer": "type",
+		            "key": "case:accusative",
+		            "match": "match:eq"
+		        }           
+            },
+            {
+                "@type": "koral:span",
+                "layer": "c",
+                "match": "match:eq",
+                 "attr": {
+		            "@type": "koral:term",
+		            "layer": "type",
+		            "key": "case:accusative",
+		            "match": "match:eq"
+		        }
+            }
+        ],
+        "relType": {
+            "@type": "koral:relation",
+            "wrap": {
+                "@type": "koral:term",
+                "foundry": "mate",
+                "layer": "d",
+                "key": "HEAD"
+            }
+        }
+    },
+    "meta": {}
+}
\ No newline at end of file
diff --git a/src/test/resources/queries/relation/any-source-with-attribute.json b/src/test/resources/queries/relation/any-source-with-attribute.json
new file mode 100644
index 0000000..6154f18
--- /dev/null
+++ b/src/test/resources/queries/relation/any-source-with-attribute.json
@@ -0,0 +1,34 @@
+{
+    "query": {
+        "@type": "koral:group",
+        "operation": "operation:relation",
+        "operands": [
+            {
+                "@type": "koral:span",
+                "layer": "c",                
+                "match": "match:eq",
+                "attr": {
+		            "@type": "koral:term",
+		            "layer": "type",
+		            "key": "case:accusative",
+		            "match": "match:eq"
+		        }           
+            },
+            {
+                "@type": "koral:span",
+                "layer": "c",
+                "key": "vp"
+            }
+        ],
+        "relType": {
+            "@type": "koral:relation",
+            "wrap": {
+                "@type": "koral:term",
+                "foundry": "mate",
+                "layer": "d",
+                "key": "HEAD"
+            }
+        }
+    },
+    "meta": {}
+}
\ No newline at end of file
diff --git a/src/test/resources/queries/relation/specific-source-with-attribute.json b/src/test/resources/queries/relation/specific-source-with-attribute.json
new file mode 100644
index 0000000..930e082
--- /dev/null
+++ b/src/test/resources/queries/relation/specific-source-with-attribute.json
@@ -0,0 +1,35 @@
+{
+    "query": {
+        "@type": "koral:group",
+        "operation": "operation:relation",
+        "operands": [
+            {
+                "@type": "koral:span",
+                "layer": "c",   
+                "key": "np",           
+                "match": "match:eq",
+                "attr": {
+		            "@type": "koral:term",
+		            "layer": "type",
+		            "key": "case:accusative",
+		            "match": "match:eq"
+		        }           
+            },
+            {
+                "@type": "koral:span",
+                "layer": "c",
+                "key": "vp"
+            }
+        ],
+        "relType": {
+            "@type": "koral:relation",
+            "wrap": {
+                "@type": "koral:term",
+                "foundry": "mate",
+                "layer": "d",
+                "key": "HEAD"
+            }
+        }
+    },
+    "meta": {}
+}
\ No newline at end of file