The DOLCE+DnS Ultralite ontology. It is a simplification of some parts of the DOLCE Lite-Plus library (cf. http://www.ontologydesignpatterns.org/ont/dul/DLP397.owl) @en
(2014-06-18) Bernard Vatant: Added link to documentation page
(2013-08-05) Bernard Vatant: Referenced by some vocabularies such as SSN or LODE under its former URI http://www.loa-cnr.it/ontologies/DUL.owl#. This URI is still alive but freezed at version 3.22.
(2017-04-10) Ghislain Atemezing: New version 3.31 added ! The authors points out the following changes: "Added a restriction to Quality and one to Region in order to ensure the original DOLCE constraint of qualities being always associated with a region, and vice versa. These axioms do not however exclude a direct applicability of qualities or regions to any other entity"