{
   "@context" : "http://ids-mannheim.de/ns/KorAP/json-ld/v0.1/context.jsonld",
   "collections" : [
      {
         "@type" : "koral:meta-filter",
         "@value" : {
            "@field" : "koral:field#corpusID",
            "@type" : "koral:term",
            "@value" : "WPD"
         }
      }
   ],
   "meta" : {},
   "query" : {
      "@type" : "koral:group",
      "operands" : [
         {
            "@type" : "koral:token",
            "wrap" : {
               "@type" : "koral:term",
               "key" : "der",
               "layer" : "orth",
               "match" : "match:eq"
            }
         },
	 {
	     "@type" : "koral:group",
	     "classOut" : 1,
	     "operation" : "operation:class",
	     "operands" : [
	 	 {
         	     "@type" : "koral:token"
         	 }
             ]
         },
         {
            "@type" : "koral:token",
            "wrap" : {
               "@type" : "koral:term",
               "foundry" : "tt",
               "key" : "NN",
               "layer" : "p",
               "match" : "match:eq"
            }
         }
      ],
      "operation" : "operation:sequence"
   }
}