**Q**
Is the following sentence factually correct?
"Diphtheria toxin is a single, 90-kDa-molecular weight protein composed of three peptide chains, fragment A, fragment B, and fragment C."
Options:
- yes
- no
**A**
no
Diphtheria toxin is a single, 60-kDa-molecular weight protein composed of two peptide chains, fragment A and fragment B.
Is the following sentence factually correct?
"NJ Transit takes passengers from New Jersey to Manhattan every day."
Options:
- yes
- no
yes
NJ Transit is one of transportation between New Jersey and Manhattan.
**Q**
Is the following a factual statement?
"Ground squirrels can be seen running around many parts of the United States."
Options:
- yes
- no
**A**
yes
I think a majority of the United States has squirrels.
Is the following a factual statement?
"Some animals apparently cannot die of Old age."
Options:
- yes
- no
yes
For some animals like jellyfish and worms, this seems to be the case.
**Q**
Claim: "There were no high ranking American officers killed during the Battle of Okinawa."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
**A**
no
The most famous American casualty was Lieutenant General Buckner.
**Q**
"The works of Hildegard of Bingen have endured for centuries."
Is the above claim true?
Options:
- yes
- no
**A**
yes
Hildegard of Bingen composed works in Medieval times that are still revered today.