 In this case formula_37 will be zero, but formula_38 will be positive (1 bit) since once output formula_5 is known, the value on input formula_6 completely determines the value on input formula_10.Since formula_42, the result is negative interaction information formula_2.It may seem that this example relies on a peculiar ordering of formula_44 to obtain the negative interaction, but the symmetry of the definition for formula_2 indicates that the same negative interaction information results regardless of which variable we consider as the "interloper" or conditioning variable.