Random letters

src/dictionaries/morphosyntactic/ner_file.py

 """Module responsible for Morphosyntactic dict that uses a tsv file with NER tags."""
 
 import random
+import string
 from collections import defaultdict
 from typing import List, Optional, Type, Dict
 
@@ -115,7 +116,10 @@ class NERFileMorphosyntacticDictionary(MorphosyntacticDictionary):
 
                         word = self._dictionary[entry_type][morpho_tag][lemma]
                     elif morpho_tag == "ign":  # unknown form
-                        lemma = "ABC"
+                        letters = string.ascii_lowercase
+                        size = random.randint(3, 5)
+                        lemma = "".join(random.sample(
+                            list(letters), size)).upper()
                         word = lemma
                     else:
                         morpho_tag = random.choice(