change text and katakana to original text and text

csj.py

@@ -91,10 +91,10 @@ class CSJ(datasets.GeneratorBasedBuilder):
           "id": datasets.Value("string"),
           "audio": datasets.Audio(sampling_rate=16_000),
           "text": datasets.Value("string"),
-          "katakana": datasets.Value("string")
+          "original_text": datasets.Value("string")
         }
       ),
-      supervised_keys=("file", "katakana"),
+      supervised_keys=("id", "text"),
       homepage=_HOMEPAGE,
       citation=_CITATION,
       task_templates=[AutomaticSpeechRecognition(audio_column="audio", transcription_column="katakana")],
@@ -269,8 +269,8 @@ class CSJ(datasets.GeneratorBasedBuilder):
             yield key, {
               "id": file_id + '.' + seg_id,
               "audio": audio,
-              "text": metadata[file_id]['data'][seg_id]["text"],
-              "katakana": metadata[file_id]['data'][seg_id]["katakana"]
+              "text": metadata[file_id]['data'][seg_id]["katakana"],
+              "original_text": metadata[file_id]['data'][seg_id]["text"]
             }
             key += 1
       else: