Q: Does "This greatly upset the balance of power within the region, weakening the areas where Sumerian was spoken, and comparatively strengthening those where Akkadian was the major language." provide a valid answer to "The salinity of what in the region was long recognized as a major problem?"?
A: no

Q: Does "In 2012, Beyonce signed a $50 million deal to endorse Pepsi." provide a valid answer to "How much did Beyonce get for a deal with a soft drink company in 2012?"?
A: yes

Q: Does "On the same tour, she opened the 23rd Canadian Parliament, becoming the first monarch of Canada to open a parliamentary session." provide a valid answer to "What parliamentary session did Elizabeth open in 1957 while on tour?"?
A: yes

Q: Does "Arsenal's longest-running and deepest rivalry is with their nearest major neighbours, Tottenham Hotspur; matches between the two are referred to as North London derbies." provide a valid answer to "What football club is Arsenal's greatest rival?"?
A:
yes