CHICAGO (AP) _ Grain futures were higher in early trading Friday on the Chicago Board of Trade. Dec. corn gained 0.25 cent at $4.40 a bushel. Dec. wheat rose by 0.75 cent at $6.00 a bushel. Dec. oats was up 0.5 cent at $3.33 a bushel. Nov. soybeans rose by 1.75 cents at $11.83 a...