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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 where_task(self, token_id, presented_pronunciation, confusion_probability):
 """Provide the prediction of the where task. This function is used to predict the probability of a given pronunciation being reported for a given token. :param token_id: The token for which the prediction is being provided :param confusion_probability: The list or array of confusion probabilities at each index """

        self['tokens'].setdefault(token_id, {}) \
            .setdefault('where', self._where_default(presented_pronunciation))

        if confusion_probability is not None:
            self['tokens'][token_id]['where'] = list(confusion_probability)