Task: Text Categorization
Input (English): Adherents of this religion traditionally built towers known as Dokhmas where birds and weather would remove the flesh of their dead because fire and earth were sacred. Its scripture is composed of parts like the visperad, the vindedad, and the gathas, hymns thought to have been composed by its Persian founder. For 10 points, name this religion in which Angra-Mainyu constantly struggles with Ahura Mazda.
Output (English): Social Science