Question: Where did blair and serena go to school?
Disambiguated questions and answers: question: Where did Blair and Serena from Gossip Girl go to high school?
Where did Blair from Gossip Girl go to college?
Where did Serena from Gossip Girl go to college?
answer: Constance Billard school
New York University, Columbia University
Columbia University
question: What  was the name of where blair and serena go to school?
What city did blair and serena go to school?
answer: Constance Billard School for Girls
Upper East Side
New York City
Natural Questions answer: Constance Billard (from the Wikipedia article "Serena van der Woodsen")