Barry Smith1,2
, Werner Ceusters3
, Bert Klagges4
, Jacob Köhler5
, Anand Kumar1
, Jane Lomax6
, Chris Mungall7
, Fabian Neuhaus1
, Alan L Rector8
and Cornelius Rosse9 
1
Institute for Formal Ontology and Medical Information Science, Saarland University, D-66041 Saarbrücken, Germany
2
Department of Philosophy, University at Buffalo, Buffalo, NY 14260, USA
3
European Centre for Ontological Research, Saarland University, D-66041 Saarbrücken, Germany
4
Department of Genetics, University of Leipzig, D-04103 Leipzig, Germany
5
Rothamsted Research, Harpenden, AL5 2JQ, UK
6
European Bioinformatics Institute, Hinxton, CB10 1SD, UK
7
HHMI, Department of Molecular and Cellular Biology, University of California, Berkeley, CA 94729, USA
8
Department of Computer Science, University of Manchester, M13 9PL, UK
9
Department of Biological Structure, University of Washington, Seattle, WA 98195, USA