Japan's core consumer inflation probably accelerated in October for the second straight month, a Reuters poll showed on Friday, as smaller energy subsidies compared with a year earlier pushed up utility costs, while food price gains moderated. The nationwide core consumer price index (CPI), which includes energy items but excludes fresh food prices, was expected to have risen 3.0% in October from a year earlier, a poll of 18 economists showed. That would follow a 2.9% increase in September, marking the first time in three months that core CPI growth returned to the 3% range.