Question: What county shares a border with Dean, in the province Sydney—Victoria is located in?

full_context: Document 1: West Vancouver—Sunshine Coast—Sea to Sky Country: West Vancouver—Sunshine Coast—Sea to Sky Country (formerly West Vancouver—Sunshine Coast) is a federal electoral district in British Columbia, Canada, that has been represented in the House of Commons of Canada since 1997.
Document 2: Upper Lakeville: Upper Lakeville is a small cottage community on the Eastern Shore of the Halifax Regional Municipality, in the Musquodoboit/Sheet Harbour region of the Marine Drive, in Nova Scotia. Upper Lakeville road is located on the junction of Trunk 7, 55.3 km from Dartmouth, and 58.9 km from Halifax.
Document 3: Dean, Nova Scotia: Dean is a small farming & forestry community in the North Branch Musquodoboit in the Musquodoboit Valley along the Halifax Regional Municipality/Colchester County county line, in the Canadian province of Nova Scotia, along Route 336. Other communities in the North Branch include Elmsvale, Greenwood, Upper Musquodoboit, and Moose River Gold Mines, among others.
Document 4: Great Village: Great Village is a rural community of approximately 500 people located along Trunk 2 and the north shore of Cobequid Bay in Colchester County, Nova Scotia. It is considered locally to incorporate the areas of Highland Village to the west and Scrabble Hill to the north northwest.
Document 5: Charlottetown (electoral district): Charlottetown (formerly Hillsborough) is a federal electoral district in Prince Edward Island, Canada, that has been represented in the House of Commons of Canada since 2004. The district, which includes the entire City of Charlottetown, has an area of 46 km and a population of 34,562 as of 2011.
Document 6: Sydney—Victoria: Sydney—Victoria is a federal electoral district in Nova Scotia, Canada, that has been represented in the House of Commons of Canada since 1997.
Document 7: Dartmouth—Cole Harbour: Dartmouth—Cole Harbour (formerly Dartmouth and Dartmouth—Halifax East) is a federal electoral district in Nova Scotia, Canada, that has been represented in the House of Commons of Canada since 2004.
Document 8: Rural Municipality of Cornwallis: Cornwallis is a rural municipality located in the Canadian province of Manitoba. It surrounds the east, south and west sides of Brandon, Manitoba. Most of the land comprising the municipality is farmland, but it contains a few settlements. One of the larger settlements, Sprucewoods, sits at the north gate of Canadian Forces Base Shilo and contains a large group of the municipal population. In the past, there has been friction between the community and the farming base that make up much of Cornwallis.
Document 9: Charlottetown-Victoria Park: Charlottetown-Victoria Park is a provincial electoral district for the Legislative Assembly of Prince Edward Island, Canada. It was previously known as Charlottetown-Kings Square.
Document 10: Wentworth North: Wentworth North was a federal electoral district represented in the House of Commons of Canada from 1867 to 1896. It was located near the city of Hamilton in the province of Ontario. It was created by the British North America Act of 1867. The "North Riding of Wentworth" consisted of the Townships of Beverley, Flamborough East and Flamborough West, and the Town of Dundas.
Document 11: Grey North: Grey North was a federal electoral district represented in the House of Commons of Canada from 1867 to 1968. It was located in the province of Ontario. It was created by the British North America Act of 1867, which divided the County of Grey into two ridings: Grey South and Grey North. The North Riding consisted of the Townships of Collingwood, Euphrasia, Holland, Saint-Vincent, Sydenham, Sullivan, Derby, and Keppel, Sarawak and Brooke, and the Town of Owen Sound.
Document 12: Woodville, Nova Scotia: Woodville is a community in Kings County of about 200 people located in the Annapolis Valley of Nova Scotia. The community is situated north of Cambridge and Waterville at the foot of the North Mountain. Centred along Route 221, Woodville has a volunteer fire department, a Baptist church, two auto body shops, a home run automotive mechanic business, and many family-run farms. It is administratively part of the village of Cornwallis Square. A community centre is located in the former school, built in 1942. The former Wesley Knox United Church, built in 1921, was sold in 2006 is now a residence and artist's workshop.
Document 13: Sherbrooke, Nova Scotia: Sherbrooke is a rural community on the Eastern Shore of Nova Scotia, Canada, in Guysborough County. It is located along the St. Mary's River, a major river in Nova Scotia. The community is named for Sir John Coape Sherbrooke, a colonial era Lieutenant Governor of Nova Scotia. Gold was discovered in the area in 1861 and Sherbrooke entered a gold rush in the which lasted two decades. The economy of the community today revolves around fishing, tourism and lumber. The community is the site of an open-air museum called "Sherbrooke Village" which depicts life in the later 1800s in the wake of the gold rush era.
Document 14: Halifax County, Nova Scotia: Halifax County is a county in the Canadian province of Nova Scotia. The Municipality of the County of Halifax was the municipal government of Halifax County, apart from the separately incorporated towns and cities therein. The Municipality was dissolved in 1996, together with those town and city governments, in their amalgamation into Halifax Regional Municipality.
Document 15: Tobique—Mactaquac: Tobique—Mactaquac is a federal electoral district in New Brunswick, Canada, that has been represented in the House of Commons of Canada since 1997.
ground_truth: Colchester County
sub_queries: Sydney—Victoria >> located in the administrative territorial entity Answer: Nova Scotia
Dean, Nova Scotia >> shares border with Answer: Colchester County