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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 clean(mapping, bind, values):
 """ Perform several types of string cleaning for titles etc.. """

    categories = {'C': ' '}
    for value in values:
        if isinstance(value, six.string_types):
            value = normality.normalize(value, lowercase=False, collapse=True,
                                        decompose=False,
                                        replace_categories=categories)
        yield value