Complex sentence: Karaites believe they observe the original religion of Ancient Israel, as prescribed by God in the Tanakh and understood by the Israelites before the Pharisaic period, and do not accept later additions such as the Talmud of Rabbinic Judaism as of divinely inspired.
Split into simpler sentences: Karaites believe they observe the original religion of Ancient Israel, as prescribed by God in the Tanakh and understood by the Israelites before the Pharisaic period. They do not accept later additions, such as the Talmud of Rabbinic Judaism, as divinely inspired.