Question:
Choose your answer: Is "Though not as previously believed the inventor of oil painting, Jan van Eyck was a champion of the new medium, and used it to create works of great realism and minute detail." a good answer to the question "What painter was an early champion of oil as a medium in painting?"
Answer:
yes

Question:
Choose your answer: Is "This new development revolutionized LED lighting, making high-power blue light sources practical, leading to the development of technologies like BlueRay, as well as allowing the bright high resolution screens of modern tablets and phones.[citation needed]" a good answer to the question "What is one modern gadget that benefits from high-power blue LED lighting?"
Answer:
yes

Question:
Choose your answer: Is "Speaking in St. Petersburg, Russia on 30 June 2011, the head of Russia's United Shipbuilding Corporation said his company expected to begin design work for a new carrier in 2016, with a goal of beginning construction in 2018 and having the carrier achieve initial operational capability by 2023." a good answer to the question "What was Izvestiya?"
Answer:
no