https://w3id.org/framester/conceptnet5/data/en/hermitian_matrix.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/complex_number> <https://w3id.org/framester/conceptnet5/data/en/square_matrix> <https://w3id.org/framester/conceptnet5/data/en/conjugate_transpose> risorse dalla linked data cloud