Nyāyadǝn adaata diwallawa degǝ sandima shilan ilmu matǝbero kasaktǝ – Pratyakṣa (nazaru), Anumāṇa (tamotǝgǝram), Upamāṇa (gǝrentǝ au gayirtǝ) and Śabda (kalma, maskuwa dinna-a bǝlinna-a jarabnǝm kuru).