new version

src/category.py

@@ -77,8 +77,13 @@ class Category:
     def to_sentence(self, sentence):
         """."""
         res = ""
-        for token in sentence.iter("tok"):
-            res += token.find("./orth").text + " "
+        space = ""
+        for token in list(sentence):
+            if token.tag == "ns":
+                space = ""
+            if token.tag == "tok":
+                res += space + token.find("./orth").text
+                space = " "
         return res
 
     def add(self, stat, cat, what, sentence):