“…Similarly, a semantic trajectory ontology is exploited for surveillance and control purposes in [113] in which spatial or aspatial rules, written in SWRL (the Semantic Web Rula Language (SWRL, SWRL: A Semantic Web Rule Language Combining OWL and RuleML, W3C, 2004, http://www.w3.org/Submission/SWRL/ (accessed on 1 August 2021))), allow abnormal ship behaviours to be described and alerts to be triggered. Lange et al [114] introduce an ontology to describe and simulate the behaviour of objects involved in the management of container loading and unloading terminals.…”