Yes / no, is the following a verifiable fact?
"There can be no traditional celebration of Christmas without a depiction of Santa Claus."

Let me think out loud. Although Christmas is a Christmas religious holiday, for millions of kids there idea of Christmas is a jolly fat man with reindeer who lives at the North Pole, Santa Claus. The answer is yes.

Yes / no, is the following a verifiable fact?
"John James Audubon possessed an allergy against celery."

Let me think out loud. I think the sentence is false because there is no evidence that John in fact had an allergy. There would need to be a record for it to be deemed true now. The answer is no.

Is the following a factual statement?
"George Orwell wrote the popular dystopian novel Nineteen Eighty-Four: A Novel."
Options:
- yes
- no
Let me think out loud. Nineteen Eighty-Four: A Novel is a well known book by George Orwell. The answer is yes.