Complex sentence: Within the doctrine of Jainism, there exist many metaphysical concepts which are not known in Hinduism, some of which are "dharma" and Adharma tattva (which are seen as substances within the Jain metaphysical system), Gunasthanas and Lesyas.
Split into simpler sentences: Within the doctrine of Jainism, there exists many metaphysical concepts which are not known in Hinduism. Some of these are Dharma and Adharma tattva (which are seen as substances within Jain metaphysical system), Gunasthanas and Lesyas.