Credit: u/clinano

If it is a riddle. That pic of the mine looking like an owl. If you search up (midnight) owl mine, it is actually a real place in Arizona where there is a lithium mine. Interesting coincidence. If it is not referring to a physical place then the picture is really saying mine the owl. Now if you search for owl data mining instead. I get this up: https://www.sciencedirect.com/science/article/abs/pii/S157082681730032X
Swift Linked Data Miner: Mining OWL 2 EL class expressions directly from online RDF datasets


In this study, we present Swift Linked Data Miner, an interruptible algorithm that can directly mine an online Linked Data source (e.g., a SPARQL endpoint) for OWL 2 EL class expressions to extend an ontology with new  axioms. The algorithm works by downloading only a small part of the Linked Data source at a time, building a smart index in the memory and swiftly iterating over the index to mine axioms.