      "Desolatesten": "Desolateste",
      "Desorptionen": "Desorption",
      "Desserts": "Dessert",
      "Dessins": "Dessin",
      "Destillen": "Destille",
      "Destinationen": "Destination",
      "Desto": "desto",
 
</s>
    "Desselben": "derselbe",
    "Dessen": "der",
      "Desolatesten": "Desolateste",
      "Desorptionen": "Desorption",
    "Desselben": "derselbe",
    "Dessen": "der",
      "Desserts": "Dessert",
      "Dessins": "Dessin",
      "Destillen": "Destille",
      "Destinationen": "Destination",
      "Desto": "desto",
keep add 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