Question: What ensign, used by Parliment during the Fifties, Sixties, and Seventies in Northern Ireland, was also used to represent Northern Ireland at the 2010 Commonwealth Games?
Sentence (from "Northern Ireland at the 2010 Commonwealth Games"): The team went by the abbreviation "NIR" and used the Ulster Banner as its flag and Londonderry Air as the victory anthem.
Relevant evidence: No