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What is space? Is there space when there are objects to occupy it or is there space only when there are no objects to occupy it? Can there be space without objects? These are old philosophical questions that concern the ontology of space in the philosophical sense of 'ontology' - what is the nature of space? Cognitive science in general and arti?cial intelligence in particular are less c- cerned with the nature of things than with their mental conceptualizations. In spatial cognition research we address questions like What do we know about space? How is space represented? What are the representational entities? What are the rep- sentational structures? Answers to these questions are described in what is called ontologies in arti?cial intelligence. Different tasks require different knowledge, and different representations of knowledge facilitate different ways of solving problems. In
What is space? Is there space when there are objects to occupy it or is there space only when there are no objects to occupy it? Can there be space without objects? These are old philosophical questions that concern the ontology of space in the philosophical sense of 'ontology' - what is the nature
Paul is shy and Judy has no friends. Oliver is afraid of other boys. Jane and Leo can't talk about their feelings, and Sue lies to her boyfriends. These five short plays tell the stories of young people with problems. Are there any answers? What do you think?
Original / British English Sarah and Jessica arrive in New Zealand for a holiday. They find a mobile phone in the taxi from the airport. It is Michael's mobile, but they can't find him? He has messages from home -- are they important? Go with the girls on a New Zealand