solve titles

guiacat.py

@@ -95,6 +95,8 @@ class GuiaCat(datasets.GeneratorBasedBuilder):
         with open(filepath) as f:
             read = csv.reader(f)
             data = [item for item in read]
+            text = ""
+            label = ""
             for id_, article in enumerate(data): 
                 text = article[5]
                 label = article[6]