      "Dereinstige": "dereinstig",
      "Dereinstigen": "Dereinstige",
      "Dermatologen": "Dermatologe",
      "Dermatologische": "dermatologisch",
      "Dermatologischen": "Dermatologische",
      "Derricks": "Derrick",
      "Derselbe": "derselbe",
      "Derselben": "derselbe",
 
</s>
    "Derer": "der",
    "Derjenige": "derjenige",
    "Derjenigen": "derjenige",
      "Dereinstige": "dereinstig",
      "Dereinstigen": "Dereinstige",
    "Derer": "der",
    "Derjenige": "derjenige",
    "Derjenigen": "derjenige",
      "Dermatologen": "Dermatologe",
      "Dermatologische": "dermatologisch",
      "Dermatologischen": "Dermatologische",
      "Derricks": "Derrick",
      "Derselbe": "derselbe",
      "Derselben": "derselbe",
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