SELECT ?title WHERE { ?? (rdfs:label|skos:prefLabel|schema:name) ?title . } observed by

SELECT ?class WHERE { ?? (rdf:type|owl:type) ?class . } Property

SELECT ?description WHERE { ?? (rdfs:comment|schema:description) ?description . } Connects an observation with the agent that created the observation. The agent can be a person, organisation, device or software. A description of the method to gather the data could be attached to the agent.