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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def normalize_startparm(p: STARTPARM) -> List[Union[type(START), START_TYPE, URIRef]]: """ Return the startspec for p """

    if not isinstance(p, list):
        p = [p]
    return [normalize_uri(e) if isinstance(e, str) and e is not START else e for e in p]