Large language models are capable of translating natural language texts into context-free grammar languages. The paper presents an initial assessment of whether such models can be used to produce ontological theories that formalise natural language descriptions of certain situations. More specifically speaking, I will focus on translating a small set of natural language descriptions of some situations of ontological interests into a fixed formal ontological framework. The model I use will not be trained or fine-tuned for this purpose but prompted. In order to build the appropriate prompts I will take advantage of the formalisations from the 17th volume of the Applied Ontology journal, where six examples of such situations were formalised within the context of seven upper-level formal ontologies.