Does "Four Fortune 500 companies and six Fortune 1000 companies are headquartered in Oklahoma, and it has been rated one of the most business-friendly states in the nation, with the 7th-lowest tax burden in 2007." contain the correct answer to "How many Fortune 500 companies are based in Oklahoma?"

A: yes

Does "At the end of World War II Soviet troops occupied southern Sakhalin Island and the Kuril Islands, making them part of the RSFSR." contain the correct answer to "Along with Sakhalin Island, what islands were occupied by the Soviets after the Second World War?"

A: yes

Does "Some succeeded their fathers as rulers, such as Sultan Ahmad al-Mansur, who ruled Morocco from 1578 to 1608." contain the correct answer to "When did Sultan Ahmad al-Mansur rule?"

A:
yes