SSWL is a searchable database that allows users to discover which properties (morphological, syntactic, and semantic) characterize a language, as well as how these properties relate across languages. This system is designed to be free to the public and open-ended. Anyone can use the database to perform queries.
From S01_Existential constructions (https://www.terraling.com/groups/7/properties/728) to S 04 3_Indef Pl Ns (Subj) must have an article (https://www.terraling.com/groups/7/properties/741): 15 properties / Guardiano, Cristina; Koopman, Hilda. - (2019).