Complex sentence: He studies under His Holiness Penor Rinpoche, H.H. Trulshik Rinpoche, H.H. Taklung Rinpoche, H.H. Dalai Lama, H.H. Drodrupchen Rinpoche, H.E. Lachung Rinpoche, H.E. Thubden Palzang Rinpoche, Ven Kempo Pema Sherab, Kenpo Namdrol and especially H.H. Khenchen Rigzin Dorjee Rinpoche.
Split into simpler sentences: He studies under His Holiness Penor Rinpoche, H.H. Trulshik Rinpoche, H.H. Taklung Rinpoche, H.H. Dalai Lama, H.H. Drodrupchen Rinpoche, H.E. Lachung Rinpoche, H.E. Thubden Palzang Rinpoche, Ven. Kenpo Pema Sherab, Kenpo Namdrol and especially H.H. Khenchen Rigzin Dorjee Rinpoche.