Phonological opacity is well-studied and there are numerous proposals in the literature which analyze opacity in Optimality-Theoretic grammars. However. many analyses include significant elaborations to the basic architecture of Optimality Theory (Prince & Smolensky 1993/2004) or its serial alternative. Harmonic Serialism (McCarthy 2000). https://www.diegojavierfares.com/quick-offer-Little-Ollie-174-Dwarf-Olive-Monrovia-super-sale/