{
  "context" : "http://ids-mannheim.de/ns/KorAP/json-ld/v0.1/context.jsonld",
  "query" : {
    "@type" : "korap:group",
    "operation" : "operation:submatch",
    "spanRef" : [ 0, 1 ],
    "operands" : [ {
      "@type" : "korap:span",
      "key" : "s"
    } ]
  }
}