Nifi processor that checks the conformance of the RDF data.
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Input: An RDF document as flowfile in Turtle Format
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Output: Output of this processor is same flowfile on one of three relationships;
(1) Syntax Error: if the document is not a valid RDF turtle format,
(2) Verified by not conformant: If syntax is correct but some or all of the terms used are not valid verifieable in the Web of Data
(3) Conformant: An RDF file is conformant if;
a- All terms used are verifieable in Ontologies referred in Web of Data
b- Structure of statement is such that the Subject, Predicate and Object are used in meanings as they are defined in Ontology