Please answer the following question: Information: - The city of Bern or Berne (; Bernese German: "Barn" ) is the de facto capital of Switzerland, referred to by the Swiss as their (e.g. in German) "Bundesstadt," or "federal city". With a population of 141,762 (November 2016), Bern is the fourth most populous city in Switzerland. The Bern agglomeration, which includes 36 municipalities, had a population of 406,900 in 2014. The metropolitan area had a population of 660,000 in 2000. Bern is also the capital of the canton of Bern, the second most populous of Switzerland's cantons. - Switzerland, officially the Swiss Confederation, is a federal republic in Europe. It consists of 26cantons, and the city of Bern is the seat of the federal authorities. The country is situated in Western-Central Europe, and is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland is a landlocked country geographically divided between the Alps, the Swiss Plateau and the Jura, spanning an area of . While the Alps occupy the greater part of the territory, the Swiss population of approximately eight million people is concentrated mostly on the plateau, where the largest cities are to be found: among them are the two global cities and economic centres Zurich and Geneva. - Heliswiss AG is a Swiss helicopter company with headquarters on the property of Bern Airport in Belp , Switzerland , near Bern . - Belp is a municipality in the Bern-Mittelland administrative district in the canton of Bern in Switzerland. It is close to Bern's Belp Airport. The municipality of Belpberg merged on 1 January 2012 into the municipality of Belp. - The Swiss Plateau or Central Plateau constitutes one of the three major landscapes in Switzerland alongside the Jura Mountains and the Swiss Alps. It covers about 30% of the Swiss surface. It comprises the regions between the Jura and the Alps, partly flat but mostly hilly, and lies at an average height between 400 and 700 m AMSL. It is by far the most densely populated region of Switzerland, and the most important with respect to economy and transportation. - Belpberg is a former municipality in the Bern-Mittelland administrative district in the canton of Bern in Switzerland. The municipality of Belpberg merged on 1 January 2012 into the municipality of Belp. - Bern Airport , formerly "Regionalflugplatz Bern-Belp" in German, is an airport serving Bern, the capital of Switzerland. The airport is located within the town limits of Belp, and features flights to some European metropolitan and several leisure destinations. It handled 271,111 passengers in 2012, an increase of 47 percent over 2011, and serves as the homebase for SkyWork Airlines and a base for Helvetic Airways. What object entity has the relation of 'dissolved or abolished' with the subject 'heliswiss'? Choices: - 2000 - 2012 - 400 - 660 - 700 - 900
Answer:
2012