In other places in Portugal, there are many independent faculty, institute and school organizations of students from many mother-institutions (universities or polytechnical institutes) that are not representative of the whole mother-institution, being this fragmentation the reason for their smaller size, importance, and strength. There are also federations of students' unions comprising public and private, university and polytechnic independent and not related institutions from a city, like "FAP - Federação Académica do Porto" (from Porto) which is the largest students organization in the country, that do not represent a single university or polytechnic, but many independent federated students' unions from institutions of the most diverse kind.