sentences:  Small-scale initiatives such as the EUREGIO can be distinguished from larger groupings, such as the 'Working Communities'.The latter – most of them were founded between 1975 and 1985 – usually comprise several regions forming large areas that can stretch over several nation states.Examples of Working Communities are the Arge Alp, the Alpes-Adria, the Working Community of the Western Alps (COTRAO), the Working Community of the Pyrenees or the Atlantic Arc.