Random triples
| Subject | Object | 
|---|---|
| gptkb:Proto-Athabaskan | nasal vowels | 
| gptkb:Proto-Athabaskan | complex syllable structure | 
| gptkb:Proto-Berber | 3 vowels | 
| gptkb:Proto-Mayan | 20 consonants | 
| gptkb:Proto-Berber | consonant inventory similar to modern Berber | 
| gptkb:Proto-Athabaskan | tone | 
| gptkb:Proto-Mayan | 5 vowels | 
| gptkb:Proto-Athabaskan | consonant-rich |