sentences:  In those days the CNT functioned primarily in Catalonia, but was also gaining importance in other regions, such as Andalusia and Aragon (where it had a higher membership than the UGT).Tensions between the radical "faístas", or FAI members, and the moderate non-"faístas" were constant and difficult to analyze because of the decentralized and sectorial nature of the organization.Finally, in 1931 a group of moderates published the "Manifesto of the Thirty", which would give rise to "treintism" (from "treinta", thirty in Spanish), and in 1932 Ángel Pestaña split from the CNT to create the Syndicalist Party.