Figure 1

NEON dataset. A directed graph representing of a subset of the NEON soil sampling data that was coded into RDF, according to the semantics of the Biological Collections Ontology (BCO). In this graph, an instance of the type obi:specimen collection called “Soil Sampling Process 1” occurs in “Location 1”, which is an instance of the class dwctype: Location. Blue ovals represent instances, green ovals ontology classes, and black ovals literals, whereas relations (a.k.a. properties) are represented as arrows. Properties and classes are prefixed with an abbreviation from the vocabulary from which they come (ro = Relations Ontology, bco = Biological Collections Ontology, obi = Ontology for Biomedical Investigations, dwc = Darwin Core, dwctype = DwC Type Vocabulary, mixs = MIxS as RDF), except for properties that do not yet exist in a controlled vocabulary and are prefixed with “urn”. Labels have been altered for readability from the original data set used to generate this graph.