Answer the following question: Is the following a factual statement?
"Jack Kerouac murder of British women haunted London for many nights."
Options:
- yes
- no
My answer and thoughts: The answer is no.
Chain of thoughts: Jack the Ripper, and not Jack Kerouac, was the murderer who terrified London.

Answer the following question: Does the following sentence make sense?
"Christopher Columbus iwas an explorer who sailed the oceans and discovered Northern America by mistake."
Options:
- yes
- no
My answer and thoughts: The answer is yes.
Chain of thoughts: He sailed the seas and landed by mistake on the American coastwhile he was looking for the Indian coast.

Answer the following question: Is the following statement true?
"As it is a free software, MS-DOS is not required from anybody."
My answer and thoughts:
The answer is no.
Chain of thoughts: This statement is not true because it is known that this software requires MIT license.