Grain and soy complex trading at the Chicago Board of Trade (CBOT) is expected to resume with wheat futures being narrowly mixed and waiting for fresh direction. Weak export demand for U.S. supplies and strong competition from Black Sea suppliers are weighing on the market, while a softer U.S. dollar is providing some support. Corn futures turned lower due to technical selling and concerns about demand for abundant U.S. supplies, while soybean futures were narrowly mixed with pressure from rains in Brazil but anticipation of rebuilding weather conditions.