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OntoFox retrieval of PATO term 'volume' and its annotations. (A) OntoFox input data; (B) Protégé display of OntoFox output data [Additional file 2]. All terms from 'volume' up to 'quality of continuant' in PATO have been imported and positioned under the BFO term Quality. The desired annotation properties (IAO_0000111 'preferred term' and IAO_0000115 'definition') have been specified using OntoFox directives 'copyTo' and 'mapTo'.