Perform X3D Ontology query AllDocumentMetaInformation.rq using examples/HelloX3dAuthorsAnimationChain.ttl to produce output file AllDocumentMetaInformation.rq.txt:
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PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX owl:  <http://www.w3.org/2002/07/owl#>
PREFIX xsd:  <http://www.w3.org/2001/XMLSchema#>
PREFIX x3d:  <https://www.web3d.org/specifications/x3d-4.1.xsd#>
PREFIX x3do: <https://www.web3d.org/specifications/X3dOntology4.1#>

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# AllDocumentMetaInformation.rq    Query to identify all document meta information.

SELECT ?metaName ?metaContent

WHERE
{ 
    ?meta  a x3do:meta ;     # Shorthand expression: a = rdf:type
           x3do:name         ?metaName ;
           x3do:content      ?metaContent .
}

# TODO can we create an equivalent query using :head :hasMeta?

# Note :meta has a :fieldMetaHasParenthead property

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| metaName | metaContent |
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