Complex sentence: Rashtriya Prajatantra Party (Nationalist) is a major right-wing monarchist party in Nepal.It's a splinter-group of Rashtriya Prajatantra Party.
Split into simpler sentences: Rashtriya Prajatantra Party (Nationalist) is a major right-wing monarchist party in Nepal. It is a splinter-group of the Rashtriya Prajatantra Party.