Question: Bern is a canton of what 26-member group?

Context paragraphs:
Urban Zakapa: Urban Zakapa (Hangul:어반자카파) is a South Korean R&B singer-songwriter group formed in 2009 by Fluxus Music.  Originally a 9-member group, in 2012 they became a trio, consisting of Park Yong-in, Jo Hyunah and Kwon Soon-il.  The group's name is an abbreviation for Urban+Zappy+Kaleidoscopic+Passionate.

Canton of Jura: The Republic and Canton of the Jura (French: "République et Canton du Jura" ), also known as the canton of Jura or canton Jura, is the newest (created in 1979) of the 26 Swiss cantons, located in the northwestern part of Switzerland.  The capital is Delémont.  It shares borders with the canton of Basel-Landschaft, the canton of Bern, the canton of Neuchatel, the canton of Solothurn and the French régions of Bourgogne-Franche-Comté and Grand Est.

LPG (South Korean band): LPG (Korean: 엘피지; an acronym for "Lovely Pretty Girls") is a South Korean girl group from that debuted in 2005 under Chan2 Productions inspired by the success of "semi-trot" singer Jang Yoon Jung.  Their name showcases the fact that several of this group were pageant participants, with two of them even making it into the Miss Korea pageant.  The three member group consists of Jiwon (leader), Riwon (main dancer) and Songha (rapper).

Cantons of Switzerland: The 26 cantons of Switzerland (German: "Kanton" , French: "canton" , Italian: "cantone" , Romansh: "chantun" ) are the member states of the Swiss Confederation.  The nucleus of the Swiss Confederacy in the form of the first three confederate allies used to be referred to as the Waldstätte.  Two further major steps in the development of the Swiss cantonal system are referred to by the terms "Acht Alten Orte" ("confederation of eight"; between 1353 and 1481) and "Dreizehn Alten Orte" ("Thirteen-Canton Confederation", during 1513–1798); they were important intermediate periods of the Ancient Swiss Confederacy.

Canton of Bern: The canton of Bern (German: "Kanton Bern" ,    ; French: "Canton de Berne" ) is the second largest of the 26 Swiss cantons by both surface area and population.  Located in west-central Switzerland, it borders the canton of Jura and the canton of Solothurn to the north.  To the west lie the canton of Neuchâtel, the canton of Fribourg and Vaud.  To the south lies the canton of Valais.  East of the canton of Bern lie the cantons of Uri, Nidwalden, Obwalden, Lucerne and Aargau.

Committee of Safety (Hawaii): The Committee of Safety, formally the Citizen's Committee of Public Safety, was a 13-member group of the Annexation Club.  The group was composed of mostly Hawaiian subjects and American citizens who were members of the "Missionary Party", as well as foreign residents in the Kingdom of Hawaiʻ i that planned and carried out the overthrow of the Kingdom of Hawaiʻ i on January 17, 1893.  The goal of this group was to achieve annexation of Hawaiʻ i to the United States.  The new independent Republic of Hawaiʻ i government was thwarted in this goal by the administration of President Grover Cleveland, and it was not until 1898 that the United States Congress approved a joint resolution of annexation creating the U.S. Territory of Hawaiʻ i.

Blumenstein: Blumenstein is a municipality in the administrative district of Thun in the canton of Bern in Switzerland.

Committee for Peace and Security in the Gulf: The Committee for Peace and Security in the Gulf (CPSG) was a "bipartisan group whose members are prominent in U.S. international policy circles... The 39-member group, organized as the Committee for Peace and Security in the Gulf, included former U.S. Rep., the late Stephen Solarz of New York, who was a member of the House Foreign Affairs Committee and Richard Perle, a former assistant defense secretary for international security policy."  

Cameo (band): Cameo is an American soul-influenced funk group that formed in the early 1970s.  Cameo was initially a 14-member group known as the New York City Players; this name was later changed to Cameo to avoid a lawsuit from Ohio Players, another group from that era.

Angerme: Angerme (アンジュルム , Anjurumu ) , formerly S/mileage (スマイレージ , Sumairēji ) , is a Japanese idol girl group from Hello!  Project, which originally consisted of four former Hello!  Pro Egg (Hello!  Project trainees) members that left Egg in 2010 and became full-time members of Hello!  Project.  In 2010, they won the Japan Record Award for Best New Artist.  In 2011, five new girls were added to the group as part of the second generation, with two being former Egg members and three new girls.  With 3 members graduating, S/mileage continued the rest of their career as a 6-member group.

Supporting paragraphs: Blumenstein Cantons of Switzerland
Answer: the Swiss Confederation