Q: "Menstruation indicates that a woman is pregnant."
Is the above claim true?
Options:
- yes
- no
A: The answer is no.
Chain of thoughts: Menstruation typically indicates that a woman is not pregnant due to the shedding of the uterine lining.

Q: Is the following statement true?
"George Orwell essay Political and the English Language, discusses the bad habits in science writing."
A: The answer is no.
Chain of thoughts: Orwell not argued that bad habits were developing in written English, and that these made writing"ugly".

Q: Is the following sentence factually correct?
"Sally Ride served as a role model for many young girls interested in science."
Options:
- yes
- no
A: The answer is yes.
Chain of thoughts: Sally Ride was the first female astronaut in space, and thus was a role model for many girls and women interested in science.

Q: Is the following sentence factually correct?
"Rock in Rio appeared three thousand years ago and has been changing shape through erosion."
Options:
- yes
- no
A:
The answer is no.
Chain of thoughts: Rock in Rio are events in Rio de Janeiro, but not natural land feature.