anchor.diff:              "lowercase",
               "arabic_stop",
               "arabic_normalization",
  -            "arabic_keywords"
  +            "arabic_keywords",
  +            "arabic_stemmer"
             ]
           }
         }
  
positive.code: <2> Words can be excluded from stemming with the `stem_exclusion`
      parameter.
  
  [[finnish-analyzer]]
  ==== `finnish` analyzer
  
  The `finnish` analyzer could be reimplemented as a `custom` analyzer as follows:
  
  [source,js]
  ----------------------------------------------------
  {
    "settings": {
      "analysis": {
        "filter": {
          "finnish_stop": {
            "type":       "stop",
            "stopwords":  "_finnish_" <1>
          },
          "finnish_keywords": {
            "type":       "stop",
            "keywords":   [] <2>
          },
          "finnish_stemmer": {
            "type":       "stemmer",
            "language":   "finnish"
          }
        },
        "analyzer": {
          "finnish": {
            "tokenizer":  "standard",
            "filter": [
              "lowercase",
              "finnish_stop",
              "finnish_keywords",
              "finnish_stemmer"
            ]
          }
        }
  
negative.code:         },
          "italian_stemmer": {
            "type":       "stemmer",
            "language":   "light_italian"
          }
        },
        "analyzer": {
  