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Corese is a Semantic Web Factory (triple store and SPARQL endpoint) implementing RDF, RDFS, SPARQL 1.1 Query and Update.

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#
# Turtle Pretty Printer
# Olivier Corby, Wimmics Inria I3S, 2013
#
template {
  "(" 
    group { 
      if (?refer, st:turtle(?e), ?e) 
      ; separator = "\n"
    } 
  ")"
}
where {
  ?in rdf:rest* ?r
  ?r  rdf:first ?e
  filter (?r != rdf:nil && not exists { rdf:nil rdf:rest* ?r })
  
  bind (isBlank(?e) && 
    ((st:get(st:allgraph, true) &&  exists { ?x ?p ?e . filter(?x != ?r) })
    || exists { ?e ?q ?e })
    as ?refer)
}
# after URI and blank
pragma { st:template st:priority 1000 }