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I am encountering an issue and I do not seem to understand why it is happening. I had to create an ontology in Protogé and I used data properties which I stored in super properties with sub properties; I have linked these to eacher using the SubProperty Of function. I have also linked them to the correct domains and provided them with a range.
However, when I try to save and then reload the files, the structure I added is removed. How can I fix this?
I tried changing the tags, unlinking them from the largest property but to no avail. I tried looking online but couldn't find any reason.