Original sentence: It is best known for its claim that through its study men and women might change from homosexuality.Its adherents also are concerned with Eli Siegel's understanding of literature, including poetry--and, following the founding of the Terrain Gallery in 1955--art
Edited sentence: Best known for Eli Siegel's understanding of literature, including poetry--and, following the founding of the Terrain Gallery in 1955, for its approach to art--for two decades (1971-90) it was widely known for the documented fact that through its study men and women might change from homosexuality