Complex sentence: The Robert Chenhall classification system was chosen as a base from which to start the national set of terms describing the objects and various expert contributors are being trained to moderate the additions of new terms to the taxonomies on SAHRIS.
Split into simpler sentences: The Robert Chenhall classification system was chosen as a base from which to start the national set of terms describing the objects. Various expert contributors will be required to moderate the additions of new terms to the taxonomies on SAHRIS.