A simple implementation of the OWL2 RL Profile on top of RDFLib: it expands the graph with all possible triples that OWL RL defines. It can be used together with RDFLib to expand an RDFLib Graph object, or as a stand alone service with its own serialization.
Perhaps for Challenges 34 & 36 (pp. 259, 270) in Semantic Web for the Working Ontologist