The sentence is true because there are historical records of this and also his work is evidence of it.
yes
Is the following sentence factually correct?
"Fyodor Dostoevsky worked as a Russian novelist, philosopher, short story writer, essayist, and journalist."
Options:
- yes
- no
Explanation and answer: Dilma Rousseff is a Brazillian economist by training.
yes

The corresponding question: Is the following statement true?
"The female head of Brazil government is Dilma Rousseff."
The six-year war between the Condello-Imerti-Serraino-Rosmini clans and the De Stefano-Tegano-Libri-Latella clans, during 1985-1991, led to more than 600 deaths.
no
Yes / no, is the following a verifiable fact?
"The second 'Ndrangheta war raged from 1975 to 1980 for five-years."
Explanation and answer: Video art can be done when creating youtube videos.
yes

The corresponding question: Does the following sentence make sense?
"I began creating some Video art to be used in a youtube video."
Options:
- yes
- no
Tony Bennett was a United States Army soldier, so he never was a citizen of the UK, so he could never be a legislator.
no
Is the following a factual statement?
"Tony Bennett participated in the United Kingdom's government as a legislator."
Options:
- yes
- no
Charles was succeeded in 741 by his sons Carloman and Pepin the Short, the father of Charlemagne.
yes
Claim: "Charlemagne governed the Franks in lieu of a king and declined to call himself king."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no