Original sentence: The linguist Ann Kumar (2009) believes that some Austronesians migrated to Japan, possibly an elite-group from Java, and created the Japanese-hierarchical society and identifies 82 plausible cognates between Austronesian and Japanese
Edited sentence: The linguist Ann Kumar (2011) believes that some Austronesians migrated to Japan, possibly an elite-group from Java, and created the Japanese-hierarchical society and identifies 82 plausible cognates between Austronesian and Japanese