sentence1: Sumner Slichter was the brother of the geophysicist Louis B. Slichter , father of physicist Charles Pence Slichter , and the grandfather of the musician Jacob Slichter .
sentence2: Jacob Slichter was the brother of geophysicist Charles Pence Slichter , father of physicist Louis B. Slichter , and the grandfather of musician Sumner Slichter .