text: ngram_query = {
      "query": {
          "function_score": {
              "query": {
                  "bool": {
                      "must": [],
                      "must_not": [
                          {
                              "terms": {
                                  "descriptions.en.keyword_lower": [
                                      "wikimedia disambiguation page",
                                      "wikimedia category",
                                      "wikimedia kml file",
                                      "wikimedia list article",
                                      "wikimedia template",
                                      "wikimedia module",
                                      "wikinews article",
                                      "wikimedia template page"
                                  ]
                              }
                          }
                      ]
                  }
              },
              "boost": 1,
              "field_value_factor": {
                  "field": "pagerank",
                  "modifier": "none",
                  "factor": 10000
              },
              "boost_mode": "multiply"
          }
      }
  }
  