Explanation and answer: The sentence is true as there is evidence that he did, in fact, participate in this occupation. There are many records of the work he did under these roles claimed.
yes

The corresponding question: Does the following sentence make sense?
"Nikola Tesla worked as an electrical engineer and mechanical engineer."
Options:
- yes
- no
He was a Christian saint and died in 565 AD.
no
Is the following a factual statement?
"Justinian I converted to Islam in 600 AD."
Options:
- yes
- no
Explanation and answer: Celery is a medicinal plant and is edible.
yes

The corresponding question: "Anybody can eat Celery as a medicinal plant."
Is the above claim true?
Options:
- yes
- no
May Day is observed as a holiday in May in many parts of the world.
yes
Is the following a factual statement?
"International May Day is a celebrated holiday in many parts of the world."
Options:
- yes
- no
Explanation and answer: My sentence is true because there is tangible evidence that a building that belongs to Wall Street is located in New York City. Anyone can go and validate this.
yes

The corresponding question: Claim: "The Wall Street building takes location in New York City."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
Explanation and answer: Capital (economics) is money, not a head of state.
no

The corresponding question:
"Capital describes the area of country that has been designated as head of state."
Is the above claim true?
Options:
- yes
- no