question: OPTIONS:
- yes
- no
The largest urban area by far is the Greater London Urban Area with 9 million inhabitants.
How many people live in the area of London?

answer: yes

question: OPTIONS:
- yes
- no
Since the Taiping Rebellion began, Qing forces allowed no rebels speaking its dialect to surrender.
When did Qing troops regain Nanjing?

answer: no

question: OPTIONS:
- yes
- no
The City of Tucson already provides reclaimed water to its inhabitants, but it is only used for "applications such as irrigation, dust control, and industrial uses."
How is Tucson replenishing its groundwater?

answer: no

question: OPTIONS:
- yes
- no
It also involves diseases of other systems, where immune reactions play a part in the pathology and clinical features.
Where can these three elements occur in the immune system?

answer:
no