Statements (25)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:proto-language | 
| gptkbp:descendedFrom | gptkb:Okinawan gptkb:Yaeyama gptkb:Ryukyuan_languages gptkb:Yonaguni gptkb:Miyako gptkb:Old_Japanese gptkb:Amami Japanese | 
| gptkbp:era | 1st millennium BCE | 
| gptkbp:extinct | yes | 
| gptkbp:glottologCode | prot1244 | 
| gptkbp:hasPhonology | consonants and vowels reconstructed | 
| gptkbp:ISO639-3 | jpx | 
| gptkbp:languageFamily | gptkb:Japonic_languages | 
| gptkbp:notAttested | directly | 
| gptkbp:restored | gptkb:linguist comparative method | 
| gptkbp:spokenIn | gptkb:Japanese_archipelago | 
| gptkbp:writingSystem | unwritten | 
| gptkbp:bfsParent | gptkb:Yayoi gptkb:Wajin gptkb:Yayoi_people | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | proto-Japonic |