As can be seen from the examples above, the diphthongs and contrast with and respectively, though there are no minimal pairs to contrast and . Impressionistically, the two pairs sound very similar to native speakers. Because doesn't appear in the final syllable of a prosodic word, there are no monosyllabic words with ; exceptions might include "voal" ('veil') and "doar" ('only, just'), though Ioana Chițoran argues that these are best treated as containing glide-vowel sequences rather than diphthongs. In some regional pronunciations, the diphthong tends to be pronounced as a single vowel .