diff --git a/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/api/entities/EntitiesFactory.java b/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/api/entities/EntitiesFactory.java
index af0d95c..00ffc71 100644
--- a/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/api/entities/EntitiesFactory.java
+++ b/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/api/entities/EntitiesFactory.java
@@ -83,6 +83,9 @@ public abstract class EntitiesFactory {
 			List<TEIMorph> morphs, boolean isZeroSubject);
 
 	public abstract TEICoreference createCoreference(String id, String type,
+			String dominant, List<TEIMention> mentions, TEIMention sourceMention);
+	
+	public abstract TEICoreference createCoreference(String id, String type,
 			String dominant, String facet, List<TEIMention> mentions, TEIMention sourceMention);
 
 }
diff --git a/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/impl/entities/EntitiesFactoryImpl.java b/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/impl/entities/EntitiesFactoryImpl.java
index a10b79e..c3dfe2d 100644
--- a/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/impl/entities/EntitiesFactoryImpl.java
+++ b/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/impl/entities/EntitiesFactoryImpl.java
@@ -135,6 +135,13 @@ public class EntitiesFactoryImpl extends EntitiesFactory {
 
 	@Override
 	public TEICoreference createCoreference(String id, String type,
+			String dominant, List<TEIMention> mentions, TEIMention sourceMention) {
+		return new TEICoreferenceImpl(id, type, dominant, mentions,
+				sourceMention);
+	}
+	
+	@Override
+	public TEICoreference createCoreference(String id, String type,
 			String dominant, String facet, List<TEIMention> mentions, TEIMention sourceMention) {
 		return new TEICoreferenceImpl(id, type, dominant, facet, mentions,
 				sourceMention);
diff --git a/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/impl/entities/TEICoreferenceImpl.java b/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/impl/entities/TEICoreferenceImpl.java
index 5d482b4..0ceff22 100644
--- a/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/impl/entities/TEICoreferenceImpl.java
+++ b/src/main/java/pl/waw/ipipan/zil/nkjp/teiapi/impl/entities/TEICoreferenceImpl.java
@@ -18,6 +18,16 @@ public class TEICoreferenceImpl implements TEICoreference {
 	private List<TEIMention> mentions;
 	private TEIMention sourceMention;
 
+	public TEICoreferenceImpl(String id, String type, String dominant,
+			List<TEIMention> mentions, TEIMention sourceMention) {
+		this.id = id;
+		this.type = type;
+		this.dominant = dominant;
+		this.facet = null;
+		this.mentions = mentions;
+		this.sourceMention = sourceMention;
+	}
+	
 	public TEICoreferenceImpl(String id, String type, String dominant, String facet,
 			List<TEIMention> mentions, TEIMention sourceMention) {
 		this.id = id;