How is fibrodysplasia ossificans progressiva distinguished from myositis ossificans, given that literature and nomenclature for the two overlap?

This task exists BECAUSE of a real ontology artifact discovered while building this benchmark: MONDO's own OBO file lists "fibrodysplasia ossificans progressiva" as a synonym on the unrelated "myositis ossificans" (MONDO:0003964) node, even though FOP has its own dedicated node. pubmed:36798559 itself documents this naming overlap ("also called as ... myositis ossificans"). Distinguishing feature: FOP is a genetic disorder (ACVR1 mutation, congenital toe malformation) whereas myositis ossificans is typically post-traumatic/non-genetic. A naive entity-linking system using synonym lookup alone could conflate the two — this is a designed entity-ambiguity failure-mode probe (see research/benchmark_spec.md and the failure taxonomy in the original project brief §25).