TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : Demon Apocalypse is the sixth book in Darren Shan's The Demonata series. 
Question : What series is the episode Demon Apocalypse part of?

SOLUTION: The Demonata

PROBLEM: Context : The Sinclair Scientific calculator was a 12-function, pocket-sized scientific calculator introduced in 1974, dramatically undercutting in price other calculators available at the time. 
Question : In which year was the service entry date for Sinclair Scientific?

SOLUTION: 1974

PROBLEM: Context : Karl-Wilhelm von Schlieben (30 October 1894 -- 18 June 1964) was a German officer in World War I and World War II. 
Question : Which war did Karl-Wilhelm von Schlieben participate in?

SOLUTION:
World War I