Complex sentence: She is credited with the reintroduction of the raui system to the Cook Islands, a traditional system forbidding access to or use of a resource, such as to a fishing lagoon or shellfish, for a certain period of time.
Split into simpler sentences: She is credited with the reintroduction of the raui system to the Cook Islands. The raui system is a traditional system used in the Cook Islands, where access or use of a particular resource, such as a fishing lagoon or shellfish, is forbidden for a certain period of time.