Figure 2 from: Cui H, Macklin J, Sachs J, Reznicek A, Starr J, Ford B, Penev L, Chen H (2018) Incentivising use of structured language in biological descriptions: Author-driven phenotype data and ontology production. Biodiversity Data Journal 6: e29616. https://doi.org/10.3897/BDJ.6.e29616 - Cui, Hong (2018)