      "Dietzenbachers": "Dietzenbacher",
      "Dietzenbachs": "Dietzenbach",
      "Diffamien": "Diffamie",
      "Diffamierenden": "Diffamierende",
      "Diffamierenderen": "Diffamierendere",
      "Diffamierendsten": "Diffamierendste",
      "Diffamierens": "Diffamieren",
      "Diffamierte": "diffamiert",
 
</s>
    "Dieweil": "dieweil",
      "Dietzenbachers": "Dietzenbacher",
      "Dietzenbachs": "Dietzenbach",
    "Dieweil": "dieweil",
      "Diffamien": "Diffamie",
      "Diffamierenden": "Diffamierende",
      "Diffamierenderen": "Diffamierendere",
      "Diffamierendsten": "Diffamierendste",
      "Diffamierens": "Diffamieren",
      "Diffamierte": "diffamiert",
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