Does "The Ohio and Tennessee Valleys and the Midwest consist largely of rolling hills and productive farmland, stretching south to the Gulf Coast." contain the correct answer to "Which of the Great Lakes is entirely located in US territory?"

A: no

Does "Following the death of Grand Prince Igor in 945, his wife Olga ruled as regent in Kiev until their son Sviatoslav reached maturity (ca." contain the correct answer to "When did Prince Igor past away?"

A: yes

Does "Houston is the seat of the internationally renowned Texas Medical Center, which contains the world's largest concentration of research and healthcare institutions." contain the correct answer to "How many non profit organizations are members of the Medical Center?"

A:
no