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. 2016 Sep 14;7:53. doi: 10.1186/s13326-016-0100-2

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© The Author(s). 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 4 — Illustration of logical axioms and subclasses of ‘data collection’ in OBCS. This is a screenshot of Protégé OWL editor display of OBCS. As shown here, this term is defined by an equivalent axiom, four subclass axioms, and one inherited subclass axiom. There are 12 subclasses under ‘data collection’