The document describes an emergency response demonstration that uses semantic web technologies to help coordinate emergency services. The demonstration involves a cargo plane crashing in London, causing multiple fires. It shows how an emergency response system could help the Joint Emergency Services Control Centre make sense of the emergency, handle information requests, and make tactical decisions by integrating technologies like ontology mapping, image retrieval, and data management. The goal is to effectively acquire, analyze, and use information in real-time during an emergency response.