Supplementary material 1 from: Nguyen N, Gabud R, Ananiadou S (2019) COPIOUS: A gold standard corpus of named entities towards extracting species occurrence from biodiversity literature. Biodiversity Data Journal 7: e29626. https://doi.org/10.3897/BDJ.7.e29626

A .pdf file presents our guidelines to mark up five categories of entities. The guidelines provide specific instructions to annotators about the annotation scope and the annotation span of each category. Examples are used to demonstrate these instructions. The guidelines also describe some exceptions that the annotators must follow during their annotation process.