**Q**
Yes / no, is the following a verifiable fact?
"Luciano Pavarotti performed at the FIFA World Cup."
**A**
yes
Luciano Pavarotti was part of the Three Tenors who performed at the 1990 FIFA World Cup.
Claim: "Nicolae Ceausescu died by firing squad after a revolution."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
yes
Nicolae Ceausescu was executed by firing squad on December 25, 1989 after a violent overthrow.
**Q**
Does the following sentence make sense?
"A Tradesman attends a special school to become an expert."
Options:
- yes
- no
**A**
no
The sentence is false because that is not true for all tradesmen. Some go to school, while others do not. We cannot categorize an entire large group by the characteristics of a smaller group.
Claim: "Table tennis offers the players a chance to switch sides after every one minute."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
no
This is false because in table tennis the game is played in sets and after a set is when players switch sides.
**Q**
Is the following a factual statement?
"The Portuguese Navy operates as a dual navy with Brazil."
Options:
- yes
- no
**A**
no
Portugal and Brazil have a common language but not a common navy.
**Q**
Yes / no, is the following a verifiable fact?
"Jason Mraz invented the electric guitar while fighting in the trenches in World War I."
**A**
no
Jason Mraz did not fight in World War I and someone else invented the electric guitar.