Q: Does "During 1976, Queen played one of their most famous gigs, a free concert in Hyde Park, London." provide a valid answer to "Who organized a free concert by Queen in 1976?"?
A: no

Q: Does "Buddhist schools vary on the exact nature of the path to liberation, the importance and canonicity of various teachings and scriptures, and especially their respective practices." provide a valid answer to "What is one of the Ten Meritorious Deeds of Buddhism?"?
A: no

Q: Does "Nonetheless, Greece faced economic hardships and defaulted on its external loans in 1826, 1843, 1860 and 1894." provide a valid answer to "What did Greece do in 1826, 1843, 1860 and 1894?"?
A: yes

Q: Does "From November 1418, 15 Ukrainian activists were among the 100 human-, national- and religious-rights advocates invited to discuss human rights with Soviet officials and a visiting delegation of the U.S. Commission on Security and Cooperation in Europe (also known as the Helsinki Commission)." provide a valid answer to "What did people gather to observe on December 10th?"?
A:
no