Complex sentence: The Ramaytush were one of the major divisions of the Ohlone Native Americans of Northern California who inhabited the San Francisco Peninsula between San Francisco Bay and the Pacific Ocean in the area which is now San Francisco and San Mateo Counties.
Split into simpler sentences: The Ramaytush were one of the major divisions of the Ohlone Native Americans of Northern California. They inhabited the San Francisco Peninsula between San Francisco Bay and the Pacific Ocean in the area which is now San Francisco and San Mateo Counties.