https://w3id.org/framester/wn/wn30/instances/word-partial_differential_equation <https://w3id.org/framester/wn/wn30/schema/Word> <https://w3id.org/framester/wn/wn30/schema/lexicalForm> partial differential equation @en-us rdf:type <https://w3id.org/framester/wn/wn30/schema/Word>