Fig. 2
From: Structuring, reuse and analysis of electronic dental data using the Oral Health and Disease Ontology
Illustration showing instances used in representation of a two-surface resin restoration. Each box is an OWL individual. Arrows indicate the relations among the individuals, and box shape indicates the upper level BFO universal which it instantiates. In some cases, a proximate superclass is listed after a dash. In other cases, the label until the instance number or ‘of’ names the proximate class. Where ‘of’ is used it indicates a functional relation. Underlined dates are data values