// FedaFeatureFunction ff = new FedaFeatureFunction(new ArrayList<String>(trainFileToDomain.values()));
featureFunctionExtractors.addAll(ExtractorListFeatureFunctionConverter.convert(contextFeatureExtractors, ffDomainAdaptor));
featureFunctionExtractors.addAll(ExtractorListFeatureFunctionConverter.convert(tokenContextFeatureExtractors, ffDomainAdaptor));
featureFunctionExtractors.addAll(ExtractorListFeatureFunctionConverter.convert(tokenCleartkExtractors, ffDomainAdaptor));
featureFunctionExtractors.addAll(ExtractorListFeatureFunctionConverter.convert(entityFeatureExtractors, ffDomainAdaptor));
featureFunctionExtractors.add(new FeatureFunctionExtractor(cuePhraseInWindowExtractor, ffDomainAdaptor));
}