Complex sentence: Various terms have been used to refer to the religious beliefs of the 175 Ethnolinguistic Nations of the Philippines have been collectively referred to as Anitism, Bathalism, and more generally, Animism.
Split into simpler sentences: Various terms have been used to refer to the religious beliefs of the 175 Ethnolinguistic Nations of the Philippines. They have been collectively referred to as Anitism, Bathalism, and more generally, Animism.