id author title date pages extension mime words sentence flesch summary cache txt gerardi-kahd-2022 gerardi gerardi-kahd-2022 2022 11 .pdf application/pdf 5444 385 50 Such databases, beside elucidating the internal classification of language families, play a role in the understanding of displacement and linguistic contact, for example, through borrowing. Apart from its value for (computational) historical linguistics mentioned in the previous section, the KAHD database also serves as language documentation and preservation effort for Amazonian language families since, as shown in Section 1.1, the number of speakers for some of the languages is diminishing at a fast rate (see e.g. D’Ávila 2019). cache/gerardi-kahd-2022.pdf txt/gerardi-kahd-2022.txt