Yes / no, is the following a verifiable fact?
"A total of 400,000 people claim to be Cherokee."
no
There's only about over 300,000 people that are Cherokee.


**Q**
Is the following statement true?
"In Iron Man Robert Downey Jr. plays the main character."
**A**
yes
Robert Downey Jr. plays the role of Iron Man in the movie.


Yes / no, is the following a verifiable fact?
"If yams are not available, Sweet potato can be made by combining regular white potatoes and whipped cream."
no
Sweet potatoes are a different species of potato.


**Q**
Claim: "Hunters values Sea otters for their fur, and hunted them to near extinction."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
**A**
yes
This is true, and it is well known that the sea otter is an endangered species.


Does the following sentence make sense?
"Practitioners of Ophthalmology are called ptometrists."
Options:
- yes
- no
no
While both have doctorate-level degrees, ophthalmologists must complete medical training while optometrists receive specialized non-physician training.


Is the following statement true?
"The Edo period took place between 2003-2004."
no
The edo period ended hundreds of years ago.