Fig. 3

Phenotype Knowledge Graph. The instance-based ABox semantic graph shows the description of a multicellular organism. It consists of instances (purple-bordered boxes), each of which instantiates a specific ontology class (yellow-bordered boxes with rounded corners) through the type property. All instances referring to anatomical entities possess a human-readable label (grey-bordered box connected through the label property) and are connected via parthood relations, forming a partonomy. The partonomy indicates that this instance of multicellular organism possesses an instance of insect head that, in turn, possesses an instance of antenna. The multicellular organism instance is further described to have a flattened shape and a measured live weight of 84.3 milligrams. The semantic graph is organized and fragmented into different subgraphs, each of which is contained in its own named graph (dashed-bordered colored boxes). Each subgraph contains information relating to a specific perceptual question that can only be answered empirically. In other words, each named graph contains a separate empirical observation. And each named graph also possesses its own URI and instantiates a named graph ontology class. The Phenotype Knowledge Graph is the union of all the named graphs