The CBOT was mostly lower to end the week with cattle and soyoil the only major markets to post gains. China is on its Dragon Boat holiday, which kept markets quiet as few developments in the cash market were expected. USDA’s report of old crop corn sales to unknown destinations offered some brief support on Friday, but old crop corn futures posted 3-cent losses anyway. Position liquidation based on Russian-Turkish talks about a Ukrainian grain export corridor was once again the primary driver of the day’s grain trade.  For the day, funds are thought to have sold some 12,000 contracts of soybeans, 5,000 contracts of corn, and 6,000 contracts of wheat. Funds were also net sellers in the soy product markets and sold 3,000 co...