BC5CDR-chem-IOB is working

BLURB.py

@@ -100,7 +100,7 @@ class Blurb(datasets.GeneratorBasedBuilder):
 
   BUILDER_CONFIGS = [
     BlurbConfig(name='BC5CDR-chem-IOB', task='ner', label_classes=['O', 'B-Chemical', 'I-Chemical'],
-                    data_url = "https://github.com/cambridgeltl/MTL-Bioinformatics-2016/tree/master/data/",
+                    data_url = "https://github.com/cambridgeltl/MTL-Bioinformatics-2016/raw/master/data/",
                     description='BC5-CHEM',
                     citation=CITATION_BC5_CHEM)
   ]
@@ -143,8 +143,7 @@ class Blurb(datasets.GeneratorBasedBuilder):
     logger.info("⏳ Generating examples from = %s", filepath)
 
     if self.config.task == 'ner':
-        self._ner_example_generator(filepath)
-
+      return self._ner_example_generator(filepath)
 
   def _ner_split_generator(self, downloaded_files):
       return [
@@ -156,7 +155,6 @@ class Blurb(datasets.GeneratorBasedBuilder):
                                   gen_kwargs={"filepath": downloaded_files["test"]}),
       ]
 
-
   def _ner_example_generator(self, filepath):
     with open(filepath, encoding="utf-8") as f:
         guid = 0