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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 GT(classical_reg1, classical_reg2, classical_reg3):
 """ Produce an GT instruction. :param classical_reg1: Memory address to which to store the comparison result. :param classical_reg2: Left comparison operand. :param classical_reg3: Right comparison operand. :return: A ClassicalGreaterThan instance. """

    classical_reg1, classical_reg2, classical_reg3 = prepare_ternary_operands(classical_reg1,
                                                                              classical_reg2,
                                                                              classical_reg3)
    return ClassicalGreaterThan(classical_reg1, classical_reg2, classical_reg3)