Fix

wmt_vat.py

@@ -131,7 +131,7 @@ class WmtVat(datasets.GeneratorBasedBuilder):
                 gen_kwargs={
                     "src_path": src_file,
                     "ref_path": ref_file,
-                    "pair": self.config.name[5:].replace("_", "-"),
+                    "pair": self.config.name[6:].replace("_", "-"),
                     "meta_path": meta_file
                 },
             )