“NAVIGATING THE ABYSS: CHALLENGES AND SOLUTIONS IN QUERY AND PREDICATE EMPTINESS FOR ONTOLOGY-BASED DATA ACCESS”, ijai, vol. 2, no. 02, pp. 01–04, Apr. 2022, Accessed: Aug. 13, 2026. [Online]. Available: https://www.academicpublishers.org/journals/index.php/ijai/article/view/54