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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 _adjust_truism(t):
 """ Swap the operands of the truism if the unknown variable is on the right side and the concrete value is on the left side. """

        if t.args[0].cardinality == 1 and t.args[1].cardinality > 1:
            swapped = Balancer._reverse_comparison(t)
            return swapped
        return t