SIOUX CITY, Iowa (AP) — A Nebraska woman has pleaded not guilty to stealing from a now-closed Sears store in western Iowa. Woodbury County court records show 39-year-old Sandra Martinez, of South Sioux City, Nebraska, entered a written plea last week to the theft charge. The records don’t show that a trial has been scheduled. The records say Martinez stole $400 on the first day she worked at the Sioux City store and stole $1,000 on the last day she worked there. The store closed earlier this month — one of 80 closings the troubled retailer announced in late December.