SANTO: A Web-based Annotation Tool for Ontology-driven Slot Filling Matthias Hartung author Hendrik ter Horst author Frank Grimm author Tim Diekmann author Roman Klinger author Philipp Cimiano author 2018-07 text Proceedings of ACL 2018, System Demonstrations Fei Liu editor Thamar Solorio editor Association for Computational Linguistics Melbourne, Australia conference publication hartung-etal-2018-santo 10.18653/v1/P18-4012 https://aclanthology.org/P18-4012/ 2018-07 68 73