Answer the following question: Is the following statement true?
"The earliest automotive Headlamp used oil as the most common type of fuel."
My answer and thoughts: The answer is no.
Chain of thoughts: The candle was the most common type of fuel in the automotive Headlamp.

Answer the following question: "Narayana Guru led a reform movement against the injustice in the caste-ridden society of Kerala in order to promote spiritual enlightenment and social equality."
Is the above claim true?
Options:
- yes
- no
My answer and thoughts: The answer is yes.
Chain of thoughts: The sentence is true because there are records of his work that prove it.

Answer the following question: Is the following sentence factually correct?
"Mark Knopfler devoted much of his musical energies to his group, the Hard Racers during mid-1970s."
Options:
- yes
- no
My answer and thoughts:
The answer is no.
Chain of thoughts: Mark Knopler owned a music group named Café Racers.