Mei Li:
If you were celebrating your pearl wedding anniversary for how many years have you been married??
Shuai Zheng:
30
Mei Li:
What is the name of the perfect city built in the sky in the play The Birds by Aristophanes??
Shuai Zheng:
cloud cuckoo land
Mei Li:
What is the name of the English law that prevents anyone building so as to completely cut out light from a window that had provided light for at least 20 years??
Shuai Zheng:
ancient lights