 Lobel (2010) lists the following percentage of unique vocabulary items out of 1,000 compared words in these Negrito languages, which Reid (1994) suggests are lexical remnants from the pre-Austronesian substrata that these Negrito languages may have.Manide and Umiray Dumaget have the most unique vocabulary items.Other Southeast Asian languages with high proportions of unique vocabulary of possible isolate origin include the Enggano language of Indonesia and the Kenaboi language of Malaysia.