TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : Manthor was the Master of the North-march of Brethil, a part of the forest by the River Sirion nearest to the Ford of Brithiach. 
Question : What city is Manthor associated with?

SOLUTION: Brethil

PROBLEM: Context : Benerib was a wife of pharaoh Hor-Aha, but she was not the mother of his heir, Djer. 
Question : What is Benerib's spouse's name?

SOLUTION: Hor-Aha

PROBLEM: Context : Relaciones peligrosas (English: Dangerous Affairs), originally known as Física o Química (Physics or Chemistry), is an American Spanish-language telenovela produced by Telemundo Studios, Miami. 
Question : The Relaciones peligrosas is based upon what?

SOLUTION:
Física o Química