      "Oden": "Ode",
      "Odenwaldes": "Odenwald",
      "Odiums": "Odium",
      "Odontologische": "odontologisch",
      "Odontologischen": "Odontologische",
      "Ofenfrischen": "Ofenfrische",
      "Ofens": "Ofen",
      "Offenbachern": "Offenbacher",
 
</s>
    "Oder": "oder",
      "Oden": "Ode",
      "Odenwaldes": "Odenwald",
    "Oder": "oder",
      "Odiums": "Odium",
      "Odontologische": "odontologisch",
      "Odontologischen": "Odontologische",
      "Ofenfrischen": "Ofenfrische",
      "Ofens": "Ofen",
      "Offenbachern": "Offenbacher",
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