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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def review(self) -> None: """ Used to play the WAV files and compare with the transcription. """


        for prefix in self.determine_prefixes():
            print("Utterance: {}".format(prefix))
            wav_fn = self.feat_dir / "{}.wav".format(prefix)
            label_fn = self.label_dir / "{}.{}".format(prefix,self.label_type)
            with label_fn.open() as f:
                transcript = f.read().strip()
            print("Transcription: {}".format(transcript))
            subprocess.run(["play", str(wav_fn)])