Mei Li:
What is the name of the central family in 'National Lampoon's Christmas Vacation'??
Shuai Zheng:
griswolds
Mei Li:
What is the currency of Bulgaria?
Shuai Zheng:
lev
Mei Li:
Van Mildert, Trevelyan and St Chad's are constituent colleges of which university??
Shuai Zheng:
durham