private Relationship createTestRelationship() {
    Relationship relationship = new Relationship();

    relationship.setId("relationship");
    relationship.addSource(new SourceReference());
    relationship.getSources().get(0).setDescriptionRef(URI.create("urn:sourceDescription1"));

    relationship.setKnownType(RelationshipType.Couple);

    relationship.setPerson1(new ResourceReference(URI.create("urn:person1")));
    relationship.setPerson2(new ResourceReference(URI.create("urn:person2")));

    relationship.addFact(new Fact());
    relationship.getFacts().get(0).setId("fact");
    relationship.addFact(new Fact());
    relationship.getFacts().get(1).setId("event");

    relationship.setIdentifiers(Arrays.asList(new Identifier()));
    relationship.getIdentifiers().get(0).setType(URI.create("urn:identifierType"));
    relationship.getIdentifiers().get(0).setValue(URI.create("urn:identifierValue"));

    relationship.setAttribution(new Attribution());
    relationship.getAttribution().setChangeMessage("explanation");

    return relationship;
  }