Given the question: Information: - Ottawa is the capital city of Canada. It stands on the south bank of the Ottawa River in the eastern portion of southern Ontario. Ottawa borders Gatineau, Quebec; the two form the core of the OttawaGatineau census metropolitan area (CMA) and the National Capital Region (NCR). The 2011 census reported a population of 883,391, making it the fourth-largest city in Canada; and 1,236,324 within the CMA, making it the fourth-largest CMA in Canada. The City of Ottawa reported that the city had an estimated population of 960,754 as of December 2015. - The Canadian Coast Guard (CCG) is the coast guard of Canada. Formed in 1962, the coast guard is tasked with marine search and rescue, communication, navigation and transportation issues in Canadian waters, such as navigation aids and icebreaking, marine pollution response and providing support other Canadian government initiatives. The coast guard operates 119 vessels of varying sizes and 22 helicopters, along with a variety of smaller craft. The Canadian Coast Guard is headquartered in Ottawa, Ontario and is a Special Operating Agency within Fisheries and Oceans Canada (Department of Fisheries and Oceans). - Nova Scotia (Latin for "New Scotland"; French: "Nouvelle-Ecosse") is one of Canada's three Maritime provinces, and one of the four provinces which form Atlantic Canada. Its provincial capital is Halifax. Nova Scotia is Canada's second-smallest province, with an area of , including Cape Breton and another 3,800 coastal islands. As of 2011, the population was 921,727, making Nova Scotia the second most-densely populated province in Canada with almost . - The Hero - class patrol vessels , previously the Mid-Shore Patrol Vessel Project , is a series of nine patrol boats constructed by Halifax Shipyards for the Canadian Coast Guard . - The Halifax Shipyard Limited is a Canadian shipbuilding company located in Halifax, Nova Scotia. What is the relationship between 'hero-class patrol vessel' and '2011'?
The answer is:
service entry