Fig. 1
Phenotype description of an insect head with a flattened shape and with two antennae in the form of a class-based TBox semantic graph, OWL Manchester Syntax, and an instance-based ABox semantic graph. A: The class-based TBox semantic graph description of an insect head with a flattened shape that has two antennae as its parts. It consists of an instance (purple-bordered box) that instantiates the phenotype class that contains the actual description of the phenotype (yellow-bordered box) in the form of a class axiom consisting of anonymous property restrictions and class descriptions (grey-bordered boxes). The class axiom characterizes all instances of the class to consist of exactly one instance of insect head (id UBERON:6000004) that has the quality of a flattened (id PATO:0002254) shape and that has as its parts exactly two instances of antenna (id UBERON:0000972). B: An alternative format representing the class axioms from the ‘phenotype class’ from (A) expressed in OWL Manchester Syntax [60] (ontology classes shown with their label underlined, ontology properties with their label in italics and underlined, ‘and’ being used in the sense of intersection of two mathematical sets and ‘exactly’ as a cardinality specification). C: The instance-based ABox semantic graph description of an insect head with a flattened shape that has two antennae as its parts. It consists of the instance of the class insect head (id UBERON:6000004), the instance of the class flattened (id PATO:0002254), which relates to the head as its quality, and two instances of the class antenna (id UBERON:0000972), which relate to the head as its parts. Labels (in light-grey-bordered boxes) indicate how the different instances should be represented in a human-readable format. For reasons of clarity, resources are not represented with their URIs but with their human-readable labels. Purple-bordered box = instance resource; yellow-bordered box with rounded corners = ontology class resource; grey-bordered box with rounded corners = anonymous class; light-grey-bordered box = literal or numerical value; labeled arrow = property resource