CHICAGO (AP) _ Grain futures were mostly lower in early trading Monday on the Chicago Board of Trade. Dec. corn was up 0.25 cent at $4.80 a bushel. Dec. wheat was off 1.25 cents at $6.70 a bushel. Dec. oats was off 1.25 cents at $4.20 a bushel. Nov. soybeans fell by 3 cents at...