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Unnecessary log

As same as Eq. (25), in Eq. (28) and (29), the head "log" is unnecessary. In Eq. (28),

$$G_n = - \int q(x) \log p^{*}(x)dx$$

is correct and Eq.(29) should be

$$= - \int q(x) \log q(x) dx + \int q(x) \log \frac{q(x)}{p^{*}(x)}dx.$$

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