Question: What group did the choreographer for the dances in Dark Red Roses co-found?

Context paragraphs:
Red Roses for Me: Red Roses for Me is the debut studio album by the London-based band The Pogues and was released in October 1984.  It is filled with traditional Irish music performed with punk influences.  The band's approach of mixing traditional songs and ballads with frontman Shane MacGowan's "gutter hymns" about drinking, fighting and sex was innovative at the time.  The title "Red Roses for Me" is the name of a play by Seán O'Casey, though his works do not show any direct influence upon the band.  The album reached number 89 in the UK album charts.

Lancaster Red Roses: The Lancaster Red Roses baseball team, originally known as the Maroons, changed its name at the start of the 1906 season during a bitter match with the York, Pennsylvania-based White Roses.  Some sources indicate that the rival teams were named for the opposing factions in England's historic Wars of the Roses.  The Lancaster Red Roses played at Stumpf Field, which is still used today by local baseball and softball leagues.

Boletus rubroflammeus: Boletus rubroflammeus is a species of bolete fungus in the family Boletaceae.  First described from Michigan in 1971, it is found in the eastern United States and Mexico, where it grows in a mycorrhizal association with hardwood trees.  The fruit bodies (mushrooms) of the fungus have caps that are deep red to purplish red, and dark red pores.  The stem has coarse, dark red reticulations (raised, net-like ridges) and a narrow yellow area at the top.  All parts of the mushroom quickly stain blue when injured or cut.  Lookalikes include "Boletus flammans", a lighter-colored species that grows with conifers.  Other similar species can be distinguished by differences in distribution, morphology, staining reaction, and microscopic characteristics.  "Boletus rubroflammeus" mushrooms are poisonous, and can cause gastrointestinal distress if consumed.

George Balanchine: George Balanchine (born Giorgi Melitonovich Balanchivadze; January 22, 1904April 30, 1983) was a choreographer.  Styled as the father of American ballet, he co-founded the New York City Ballet and remained its Artistic Director for more than 35 years.

War of the Roses (Pennsylvania): The South Central Pennsylvania cities of Lancaster and York have a historical rivalry in all sporting events from the high-school level to the professional.  Since both cities are named after the English cities of Lancaster and York, the former Pennsylvania baseball teams were named for the opposing sides of the Wars of the Roses.  As a metaphor, "War of the Roses" describes the intense baseball matches fought between the Lancaster Red Roses and the York White Roses.  With the addition of York to the Atlantic League, the Barnstormers continue the Red Roses' tradition as they battle the York Revolution for lower Susquehanna supremacy.

SRT Red Lines: The Red Line Mass Transit System Project is a planned commuter rail system to serve the Bangkok Metropolitan Region.  Part of the Mass Rapid Transit Master Plan in Bangkok Metropolitan Region, it will consist of two lines, one (also referred to as the SRT Dark Red Line) running from Thammasat University's Rangsit campus to Maha Chai in Samut Sakhon Province, and the other (SRT Light Red Line) running from Salaya in Nakhon Pathom Province to Hua Mak in Bangkok, with both passing through Bang Sue which will act as a connecting hub to the MRT system.  As of 2012, the Bang Sue – Taling Chan segment of the Light Red Line is under construction, and the Bang Sue – Rangsit segment of the Dark Red Line is being prepared for construction bidding.  Most of the railway will run alongside existing national railway tracks, eventually replacing them.  Segments running through inner-city areas will be elevated, and the system will be electrified by overhead lines.  The system is to be owned and is being developed by the State Railway of Thailand.  Since the Red Lines run roughly along the alignment of the failed Hopewell Project, they have been described as a "Hopewell revival".

Red Roses (AJ Rafael album): Red Roses is the debut album by singer AJ Rafael.  It was released on June 7, 2011 by 37 Entertainment and distributed worldwide.  Red Roses includes the single, "We Could Happen" and "Without You."

Dark Red Roses: Dark Red Roses is a 1929 British film directed by Sinclair Hill.  The film includes a sequence featuring the Ballets Russes choreographed by George Balanchine.

Lancaster Red Roses (basketball): The Lancaster Red Roses were a professional basketball team based in Lancaster, Pennsylvania.  From 1946 to 1949 and from 1953 to 1955, they played in the Eastern Professional Basketball League, of which the Red Roses were one of the six original teams.  The Red Roses also played briefly as the Lancaster Rockets.  They were members of the Eastern Basketball Association from 1975 to 1978, and the Continental Basketball Association from 1979 to 1980.  The Red Roses were members of the American Basketball League briefly in the 1946-47 season, where they were known as the Lancaster Roses.

Rosa pisocarpa: Rosa pisocarpa is a species of rose known by the common name cluster rose or swamp rose.  It is native to western North America from British Columbia to northern California, where it generally grows in moist habitats.  It is a shrub sometimes forming a thicket, and growing up to 2.5 meters tall.  The stems can be dark red or blackish and are often studded with straight, paired prickles at nodes.  The leaves are each made up of several toothed oval leaflets, the terminal leaflet up to 4 centimeters long.  The inflorescence is a cyme of up to 10 flowers with pink petals each up to 2 centimeters in length.  The fruit is a rose hip about a centimeter wide.  The hips are pear- or egg-shaped and borne in clusters, and are decorative in fall and early winter, when they are red or reddish-purple and contrast with yellow foliage.  Fall foliage can be yellow or dark red.

Supporting paragraphs: Dark Red Roses George Balanchine
Answer: New York City Ballet