    @Test
    void convertsStringLiteralIntoValueWithoutLanguageWhenAssertionHasNoLanguage()
            throws Exception {

        final String value = "hodnota v cestine";
        final Assertion dpAssertion = Assertion.createDataPropertyAssertion(PROPERTY, false);
        final Value res = converter.toSesameValue(dpAssertion, value(value));
        assertTrue(res instanceof Literal);
        final Literal literal = (Literal) res;
        assertFalse(literal.getLanguage().isPresent());
    }