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. 2015 Apr 1;16:107. doi: 10.1186/s12859-015-0538-8

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© Nguyen et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. 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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Examples of biomedical binary relations.(a) The relation is not correct because of one incorrect entity. (b) The relation is not correct because the relationship between the two entities is not represented explicitly by any semantic clue. (c) The relation is correct because it satisfies our two criteria of manually evaluation.