German adjectives ending on `-e` are not lemmatized using the lookup lemmatizer
Author: SuzanaKCreated Nov 11, 2019Updated Aug 31, 2026
Labelsenhancementlang / dehelp wanted (easy)feat / lemmatizer
How to reproduce the behaviour
import spacy
nlp = spacy.load('de')
s1 = 'Der schöne Garten'
doc = nlp(s1)
[(t, t.lemma_) for t in doc]
>> [(Der, 'der'), (schöne, 'schöne'), (Garten, 'Garten')]
s2 = 'Ein schöner Garten'
doc = nlp(s2)
[(t, t.lemma_) for t in doc]
>> [(Ein, 'Ein'), (schöner, 'schön'), (Garten, 'Garten')]My Environment
- spaCy version: 2.2.2
- Platform: Linux-5.0.0-25-generic-x86_64-with-LinuxMint-19.2-tina
- Python version: 3.6.7
- Models: de
Reason
As far as I can see, all forms of German adjectives ending on e in spacy-lookups-data/spacy_lookups_data/data/de_lemma_lookup.json are capitalized, e.g.:
"Dekorative": "dekorativ",
"Weiße": "Weiß",
"Schöne": "Schönes",Source: explosion/spaCy