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#
# SPARQL Tutorial
# st:get(st:uri) is the name of a query to execute (st:minus)
# It is used 1) to select a query and 2) to display the result of the query
# RDF graph is either RDF dataset or Query Result
# Query definitions are stored in st:context named graph 
#
template st:start {

  st:call-template(st:head)
    
  st:call-template(st:selectform, ?uri)
  
  st:call-template(st:display, ?uri)
  
  #st:call-template(st:result)
  # when query is template, TransformerProcess set ?templateResult global variable
  coalesce(us:templateResult(), st:call-template(st:result))

  st:call-template(st:tail)

}
where {

  bind (coalesce(st:get(st:uri), st:intro) as ?uri)

}