@prefix this: . @prefix sub: . @prefix np: . @prefix dct: . @prefix owl: . @prefix npx: . @prefix xsd: . @prefix rdfs: . @prefix orcid: . @prefix prov: . @prefix mac: . sub:Head { this: a np:Nanopublication; np:hasAssertion sub:assertion; np:hasProvenance sub:provenance; np:hasPublicationInfo sub:pubinfo . } sub:assertion { mac:ObservationalMethod a owl:Class; dct:partOf mac:MAC-Ontology; rdfs:comment "An epidemiological surveillance system or data-collection platform through which real-world occurrences of biological entities are documented. Referenced by Type 2 observation FDOs via `mac:hasSurveillanceMethod`. Instances carry one or more `cito:citesAsAuthority` URIs identifying the published descriptions of the surveillance platform."; rdfs:label "Observational Method"; rdfs:subClassOf mac:Method . } sub:provenance { sub:assertion dct:created "2026-05-22"^^xsd:date; prov:wasAttributedTo orcid:0000-0001-8888-635X . } sub:pubinfo { this: dct:created "2026-05-26T21:47:42Z"^^xsd:dateTime; dct:creator orcid:0000-0001-8888-635X; dct:license ; npx:introduces mac:ObservationalMethod; npx:supersedes ; rdfs:label "Vocabulary term: mac:ObservationalMethod" . sub:sig npx:hasAlgorithm "RSA"; npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQD3w/IUb755GIzp3ueODYkgELhyq4Clygb5Kspge50xo+n8uC/IvXwi+ukRjEpdfX/JZ09yKUCJ2AMMr/QchrsP1Xhg9Q3fEZ4E12XqFd5jX00Qs0K5XZwjBaV8NdDTJW9I4gpcyh0cry7hSBAWHkXEkqbK+lQvR4UFAKejFq6u/wIDAQAB"; npx:hasSignature "61jRiSfUFYGDvoq9kA2wcfKsW75i1UNe+tEcl9A8WfJ8f9lp4HXFmQfRjC7TY5Li7i3Z7gq4S5I1GOur6qGv4LiOT0eW8zlcDuXtqcnh3DnJWRGL5Rf7ruum1LYrbK22X0f4/1NQFd8QUCK+ZSFUsuvBKXkrtTJVo8MSEdGtsGI="; npx:hasSignatureTarget this:; npx:signedBy orcid:0000-0001-8888-635X . }