      "Sortimente": "Sortiment",
      "Sortimenten": "Sortiment",
      "Sortiments": "Sortiment",
      "Sossenheimern": "Sossenheimer",
      "Sossenheimers": "Sossenheimer",
      "Sossenheims": "Sossenheim",
      "Sounds": "Sound",
      "Souterrains": "Souterrain",
      "Souvenirs": "Souvenir",
 
</s>
    "So": "so",
      "Sortimente": "Sortiment",
      "Sortimenten": "Sortiment",
      "Sortiments": "Sortiment",
    "So": "so",
      "Sossenheimern": "Sossenheimer",
      "Sossenheimers": "Sossenheimer",
      "Sossenheims": "Sossenheim",
      "Sounds": "Sound",
      "Souterrains": "Souterrain",
      "Souvenirs": "Souvenir",
keep keep add keep keep keep keep keep keep
 German lemmatizer additions (#2529)

* lemma of was-> was

* added new pairs issue @2486

* added article tests
spacy/lang/de/lemmatizer.py