def METHOD_NAME() -> None:
    data_a = """
    @prefix : <http://example.com/>.
    :a :b :c.
    """
    graph = Graph()
    assert (EGDC.a, EGDC.b, EGDC.c) not in graph
    graph.parse(data=data_a, format="n3")
    assert (EGDC.a, EGDC.b, EGDC.c) in graph
    data_s = graph.serialize(format="n3")
    logging.debug("data_s = %s", data_s)
    graph = Graph()
    graph.parse(data=data_s, format="n3")
    quad_set = GraphHelper.triple_set(graph)
    assert (EGDC.a, EGDC.b, EGDC.c) in graph
    logging.debug("quad_set = %s", quad_set)