A JSON-LD context defining the same IRI mappings as RDFa's initial context

rdfa11.jsonld

{
  "@context": {
    "grddl": "http://www.w3.org/2003/g/data-view#",
    "ma": "http://www.w3.org/ns/ma-ont#",
    "owl": "http://www.w3.org/2002/07/owl#",
    "rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
    "rdfa": "http://www.w3.org/ns/rdfa#",
    "rdfs": "http://www.w3.org/2000/01/rdf-schema#",
    "rif": "http://www.w3.org/2007/rif#",
    "rr": "http://www.w3.org/ns/r2rml#",
    "skos": "http://www.w3.org/2004/02/skos/core#",
    "skosxl": "http://www.w3.org/2008/05/skos-xl#",
    "wdr": "http://www.w3.org/2007/05/powder#",
    "void": "http://rdfs.org/ns/void#",
    "wdrs": "http://www.w3.org/2007/05/powder-s#",
    "xhv": "http://www.w3.org/1999/xhtml/vocab#",
    "xml": "http://www.w3.org/XML/1998/namespace",
    "xsd": "http://www.w3.org/2001/XMLSchema#",
    "prov": "http://www.w3.org/ns/prov#",
    "sd": "http://www.w3.org/ns/sparql-service-description#",
    "org": "http://www.w3.org/ns/org#",
    "gldp": "http://www.w3.org/ns/people#",
    "cnt": "http://www.w3.org/2008/content#",
    "dcat": "http://www.w3.org/ns/dcat#",
    "earl": "http://www.w3.org/ns/earl#",
    "ht": "http://www.w3.org/2006/http#",
    "ptr": "http://www.w3.org/2009/pointers#",
    "cc": "http://creativecommons.org/ns#",
    "ctag": "http://commontag.org/ns#",
    "dc": "http://purl.org/dc/terms/",
    "dcterms": "http://purl.org/dc/terms/",
    "foaf": "http://xmlns.com/foaf/0.1/",
    "gr": "http://purl.org/goodrelations/v1#",
    "ical": "http://www.w3.org/2002/12/cal/icaltzd#",
    "og": "http://ogp.me/ns#",
    "rev": "http://purl.org/stuff/rev#",
    "sioc": "http://rdfs.org/sioc/ns#",
    "v": "http://rdf.data-vocabulary.org/#",
    "vcard": "http://www.w3.org/2006/vcard/ns#",
    "schema": "http://schema.org/",
    "describedby": "http://www.w3.org/2007/05/powder-s#describedby",
    "license": "http://www.w3.org/1999/xhtml/vocab#license",
    "role": "http://www.w3.org/1999/xhtml/vocab#role"
  }
}

The JSON-LD version of RDFa's initial context is, from now on, maintained at
https://github.com/json-ld/json-ld.org/blob/master/contexts/rdfa11.jsonld