Generating ontology terms using a pattern

The main use case for dosdp-tools (and the DOS-DP framework) is managing a set of ontology terms, which all follow a common logical pattern, by simply collecting the unique aspect of each term as a line in a spreadsheet. For example, we may be developing an ontology of environmental exposures. We would like to have terms in our ontology which represent exposure to a variety of stressors, such as chemicals, radiation, social stresses, etc.

To maximize reuse and facilitate data integration, we can build our exposure concepts by referencing terms from domain-specific ontologies, such as the Chemical Entities of Biological Interest Ontology (ChEBI) for chemicals. By modeling each exposure concept in the same way, we can use a reasoner to leverage the chemical classification provided by ChEBI to provide a classification for our exposure concepts. Since each exposure concept has a logical definition based on our data model for exposure, there is no need to manually manage the classification hierarchy. Let's say our model for exposure concepts hold that an "exposure" is an event with a particular input (the thing the target is exposed to):

'exposure to X' EquivalentTo 'exposure event' and 'has input' some X

If we need an ontology class to represent 'exposure to sarin' (bad news!), we can simply use the term sarin from ChEBI, and create a logical definition:

'exposure to sarin' EquivalentTo 'exposure event' and 'has input' some sarin