def inferNamespacePrefix(aUri):
    """
    From a URI returns the last bit and simulates a namespace prefix when rendering the ontology.

    eg from <'http://www.w3.org/2008/05/skos#'>
        it returns the 'skos' string
    """
    stringa = aUri.__str__()
    try:
        prefix = stringa.replace('#', '').split('/')[-1]
    except:
        prefix = ''
    return prefix
