Complex sentence: Prior to the acquisition by Dillard's, Miller & Paine had three stores: two in Lincoln, the downtown flagship store and Gateway Mall with one in the Conestoga Mall in Grand Island, Nebraska.
Split into simpler sentences: Prior to the acquisition by Dillard's, Miller & Paine had three stores. Two in Lincoln, the downtown flagship store and Gateway Mall with one in the Conestoga Mall in Grand Island, Nebraska.