Datasets Activity Stream About Pages Order by Relevance Name Ascending Name Descending Last Modified Go 1 dataset found Licenses: Creative Commons Attribution 4.0 Formats: CSV Providers: J. Fernando Sánchez-Rada Filter Results Marl Ontology Specification Marl is a standardised data schema designed to annotate and describe subjective opinions expressed on the web or in particular Information Systems. @en TTL RDF CSV