Grains close mixed Thursday, livestock mostly higher.  Chip Nellinger, Blue Reef Agri-Marketing, says soybeans ended with nearly 23 cent gains in the January contract on the heels of new highs for the move in the soybean oil market, spread unwinding with corn and solid weekly exports.  He says he's been surprised with the ability of the soybean complex to discount the tariff concerns under a Trump Administration.  Corn was up only a penny despite weekly exports of 109 million bushels, seeing farmer selling, profit taking on spreads and a lower wheat market. Wheat saw technical selling and better rains in HRW areas weigh on the market.  However, there was also positoning ahead of the Fed decision of a quarter point drop in interest rates, as well as the WASDE.  Nellinger is only expecting slight revisions on yield in the November report.  Cattle and hogs ended mostly higher with help from the lower interest rates and despite market year low exports for both beef and pork.