Question: Pennsylvania Route 51 (PA 51) is a major state highway in Western Pennsylvania, Century III Mall is located on this road, an ailing enclosed shopping mall located in the southern Pittsburgh suburb of West Mifflin, in Pennsylvania, opened in what year?
Sentence (from "Pennsylvania Route 50"): The western terminus of the route is at Pennsylvania Route 844 in the Independence Township community of Independence less than a mile from the West Virginia state line.
Relevant evidence: No