Advocates of a genetic relation between Indo-European and Uralic maintain that the borrowings can be filtered out by application of phonological and morphological analysis and that a core of vocabulary common to Indo-European and Uralic remains. As examples they advance such comparisons as Proto-Uralic *' (or *') : Proto-Indo-European *', oblique stem *', both meaning 'water', and Proto-Uralic *' (or *') : Proto-Indo-European *', both meaning 'name'. In contrast to *' and *', the phonology of these words shows no sound changes from Indo-European daughter languages such as Indo-Iranian. In contrast to *' and *"", they show no morphological affixes from Indo-European that are absent in Uralic. According to advocates of the Indo-Uralic hypothesis, the resulting core of common vocabulary can only be explained by the hypothesis of common origin.