Does "These studies were avidly followed by artists such as Vincent van Gogh." contain the correct answer to "What was the name of vincent van Gogh's brother?"

A: no

Does "Constantine the Great, who along with Licinius had decreed toleration of Christianity in the Roman Empire by what is commonly called the "Edict of Milan", and was the first Roman Emperor baptized, set precedents for later policy." contain the correct answer to "What were the meetings called that were hosted by Constantine that helped enforce orthodoxy by Imperial authority?"

A: no

Does "However, according to research firm NPD, sales of devices running Windows in the United States have declined 21 percent compared to the same time period in 2011." contain the correct answer to "How much of a decrease in sales have Windows devices experienced?"

A:
yes