Question: Which one of Canada's three Maritime provinces is The Back Bay Formation  a geologic formation in
Sentence (from "New Brunswick"): The principal cities are Fredericton, the capital, Greater Moncton, currently the largest metropolitan (CMA) area and the most populous city, and the port city of Saint John, which was the first incorporated city in Canada and largest in the province for 231 years until 2016.
Relevant evidence: No