Chicago soybean futures were largely unchanged as agricultural markets took a breather following two sessions of strong gains triggered by a forecast of lower U.S. production. Soybeans gave up 0.2 percent to $8.65-3/4 a bushel. Soybean production was pegged at 4.690 billion bushels, with yields averaging a record 53.1 bushels per acre. China bought 8.01 million tonnes of soybeans in September, down from 9.15 million tonnes in August and below the 8.11 million tonnes in September 2017, according to Reuters calculations based on Chinese customs data.