Problem: Does "The channel was due to launch on 20 April 1964, but was put off the air by a massive power failure that affected much of London, caused by a fire at Battersea Power Station." answer the question "Where was the cause of the power outage?"

A: yes

Problem: Does "India started the construction of a 40,000-tonne, 260-metre-long (850 ft) Vikrant-class aircraft carrier in 2009." answer the question "Who is constructing the Indian-made ship?"

A: no

Problem: Does "Facing a potential invasion from his continental enemies, he decided to strike first and turned his army's sights from the English Channel to the Rhine." answer the question "Who was the Austrian commander who led the army at the fortress of Ulm?"

A:
no