Evaluating LLMs for Operational Technology (OT) Cybersecurity Risk Assessment Across Structured and Unstructured Inputs. - Padma Iyenghar; Jonny Messerknecht; Christopher Zimmer; Claudio Gregorio; Elke Pulvermüller (22nd IEEE International Conference on Factory Communication Systems, WFCS 2026, Offenburg, Germany, April 21-24, 2026, 2026)