question:
A new taxation law implemented in 2005 decreased corporate taxes from 40% to the current 20%, resulting in a stated 100% increase in tax revenue by the year 2006.
What was change made to corporate taxes in 2005?

answer: yes

question:
The European Union has outlawed the export of any product that could be used in an execution; this has prevented executioners from using EU-manufactured anesthetics like propofol which are needed for general medical purposes.
What is the nationality of the company that makes pentobarbital?

answer: no

question:
The Pechenegs were nomads roaming the steppe raising livestock which they traded with the Rus' for agricultural goods and other products.
What did the Pechenges trade with the Rus?

answer: yes

question:
The Han-era Chinese used bronze and iron to make a range of weapons, culinary tools, carpenters' tools and domestic wares.
What methodology allowed the production of new agricultural tools?

answer:
no