def fix_for_specific_versions(self, rdf_data, to_replace):
        """
        Fixes of the RDF before loading the graph. All of these are workaround
        to circuvent known issues of the SPM and FSL exporters.
        """

        # Load the graph as is so that we can query
        g = self.parse(rdf_data)

        # Retreive the exporter name and version
        query = """
prefix nidm_spm_results_nidm: <http://purl.org/nidash/nidm#NIDM_0000168>
prefix nidm_nidmfsl: <http://purl.org/nidash/nidm#NIDM_0000167>
prefix nidm_softwareVersion: <http://purl.org/nidash/nidm#NIDM_0000122>

SELECT DISTINCT ?type ?version ?exp_act WHERE {
    {?exporter a nidm_nidmfsl: .} UNION {?exporter a nidm_spm_results_nidm: .}.
    ?exporter a ?type ;
        nidm_softwareVersion: ?version .

    ?exp_act prov:wasAssociatedWith ?exporter .

    FILTER ( ?type NOT IN (prov:SoftwareAgent, prov:Agent))
}
        """

        sd = g.query(query)
        objects = dict()
        if sd:
            for row in sd:
                argums = row.asdict()
                if (argums['type'] == NIDM_SPM_RESULTS_NIDM and
                        (argums['version'].eq('12.6903') or
                         argums['version'].eq('12.575ac2c'))):
                    warnings.warn('Applying fixes for SPM exporter ' +
                                  str(argums['version']))
                    # crypto namespace inconsistent with NIDM-Results spec
                    to_replace[('http://id.loc.gov/vocabulary/preservation/' +
                                'cryptographicHashFunctions/')] = (
                                'http://id.loc.gov/vocabulary/preservation/' +
                                'cryptographicHashFunctions#')
                    # Missing 'activity' attribute in qualified Generation
                    to_replace['a prov:Generation .'] = (
                        'a prov:Generation ; prov:activity <' +
                        str(argums['exp_act']) + '> .')

        # Avoid confusion between attribute and
        # class uncorrected p-value
        # cf. https://github.com/incf-nidash/nidm/issues/421
        to_replace[('@prefix nidm_PValueUncorrected: ' +
                    '<http://purl.org/nidash/nidm#NIDM_0000160>')] = (
                    '@prefix nidm_UncorrectedPValue: ' +
                    '<http://purl.org/nidash/nidm#NIDM_0000160>')
        to_replace['nidm_PValueUncorrected'] = 'nidm_UncorrectedPValue'

        if to_replace is not None:
            for to_rep, replacement in to_replace.items():
                rdf_data = rdf_data.replace(to_rep, replacement)

        return rdf_data
Fixes of the RDF before loading the graph. All of these are workaround
        to circuvent known issues of the SPM and FSL exporters.